Bit late to the party, but what gives? Time for some good old overthinking

First, just to make sure that everyone here is on the same page on what "essence holes" means, a
very simplified explanation:
- Big ware makes a Big hole in your Essence.
- You take the Ware out, the big hole stays.
- If you put other, smaller Ware in the hole, the hole doesnīt get bigger...
- ... but if you put more, bigger Ware in it, it does.
IMO, itīs really not that complicated, but
o boi, will you find find threads over threads about this concept!

If I understand MMīs original suggestion correctly, this would be changed to:
- Big ware makes a Big hole in your Essence.
- You take the Ware out, hole closes (straight away?)
- If you put other ware in, it makes a new hole.
TBH: Not a big fan, at least not as a straight, no-investment-needed process. First, Flavour: Removing the concept of essence holes turns augmentations into just another piece of gear. Your Essence would be nothing more than a storage limit for your stuff. Second: Itīs really not that much of an issue for augmented mundanes anyways. Besides healing, the main reason for removing Augmentations is to make room for other, more efficient augmentations.
There are much more pressing issues that keep the chrome from shinging: The plight of Cyberlimbs, the penalty to healing tests (whatīs the point of the Kybernetic Specialization?), the fact that Ware only hampers positive Magic (seriously, whatīs the logic here? Also, if magic and tech doesnīt mix well, wouldnīt that also imply the existence of ware that is specifically designed to disturb magic?), not to mention the fact that many of the more "extreme" options like FBCs and Cyberzombies are missing since 5th Edition. Augmentations lacks behind in crunch and flavour because the writers were either not willing or not able to apply the same love to them as to anything magic. Spells make you fly, Adept powers makes you run up Walls, Hydraulic Jacks make you jump just a few centimeters higher. Woohoo. Augmentations are framed as something mundanes need to do to "keep up" with Magic users, but without ever coming close to catch up. Filing away the "Edginess" of Augmentations having a permanent imprint on your Essence doesnīt help with that.
However: I do think there should be some options for Mundanes (and Technomancers!) to mitigate essence loss and maybe even unlock other perks that are not available to Burnout Adepts and Magicians. In 5th Edition, Essence holes could be closed with expensive genetic therapy. Apart from this, I think it also could also make sense if essence holes can be closed up by some form of mental training or therapy.
To explain this, weīd need a more refined and less "argle bargle foofaraw" (never forgive, never forget

) vision on what essence represents: If itīs not just about how many limbs you have left, but about the
integrity of your body and soul, then a noticable portion about your essence might be about how much your "soul" and self-image
harmonizes with your physical body. This then
could mean, that if someone chops up your arm, you would initially use a portion of your essence
not because of the "lost flesh",
but because your mind and soul doesnīt align with your body anymore. Through mental training or shere habituation, you could overcome this discrepancy, and of course, you may also get a cloned biological arm to make yourself "whole" again. IMO, all of these are reasonable paths to integreate essence recovery. And it also would make sense if mundanes are somewhat better at this, because they donīt have to align the whole body-mind-soul-complex with the astral space.
In contrast, an actual cyberarm will always be a somewhat foreign element, since itīs not made out of - well,
you. Itīs mechanical and itīs controlled by a foreign onboard computer system thatīs interfacing with your nervous system. In a way, itīs more like a symbiotic relationship than an "extension" of yourself (Which is a theme that
really deserves more exploration, especially when it comes to Cyberware. If highly recommend this
gritty little masterpiece on this

). Note that this also serves as another explanation on why bioware is less invasive than Cyberware.
But what if you decide to "train" your soul and mind to help accept and integrate the "foreign" element? That would imply that people can also learn to (partially) offset the essence loss of augmentations, by, for the lack of better words,
befriending and embracing them. One way to intergrate such a concept might be a return of the "Samurai Ways" last seen late in 4th Edition: By embracing that you
are an unstoppable "Tank" or a wired "Speed Demon", the fitting Augmentations become a integral part of your identity, thus lowering the essence costs and maybe even unlock more of their potential.
Also, remember that there is a whole Archetype thatīs supposedly better at communicating with computers than anyone else: Late in 5th Edition, Technomancers got some perks to unlock more power in cyberware augmentations. These should definitley make a return. Itīs all fine and dandy that Adepts got their
Path of the Burnout, but thatīs not the first archetype one should think about when it comes to "making more out of your ware"!