For me, the big issue is going to be mobile devices (phones, and tablets to a lesser degree)

I've already had it up to my back teeth with Google arbitrarily updating things such that the on/off button was hijacked, preventing me from switch the device off, instead triggering an interaction with freaking Gemini (what sort of IDIOT thought doing that to a device was a good idea)

I'm seriously trying to find a way to no longer run Apple or Google OS based phones - which puts me in the "Linux" or "Graphene" market