Nothing lasts for ever. The sooner you make the switch, the better off you will be.
With W11, that is not the case. Therefore, it becomes inevitable. Worth mentioning is that companies, governments and whole countries are ditching Microsoft altogether - for various reasons(some are geopolitical, due to sanctions and tariffs, others are technical).
Lenovo, Dell and HP are slowly ditching W11 as well in favour of linux. If you look up definitions of malware and spyware, windows 11 falls into both of them. It's that bad. So again, I'm not a linux fanboy by any stretch of imagination, but the writing is not just on the wall, we've passed the point of no return. Or rather, Microsoft has.
Now that linux supports 95% of games, there is little holding people back as gaming was always the biggest hurdle when it came to linux. And Adobe, too, is no longer what keeps people stuck on Windows - either because they ditched it due to their horrible pricing practices, or because there are now solid alternatives.
Of course many people will switch to mac as well. But windows in general, i think, is done. It had a good run for few decades, but they dropped the ball so hard that there is no going back or fixing it with w12.
Point is, we techies might chafe at and complain about all these anti-consumer shenanigans (Meta and privacy, anyone?) but it does not affect their business momentum, probably because the rest of the world just doesn't care.
Personally, I am still on W10 and and delaying the move, so i'm not holier than thou. It's tough. But I also am a programmer/power user and am on my PC 24/7, sort of, so this disruption must be timed properly for me to make the move, which is not necessarily the case for most people/average users.
Phone on the other hand, as long as it works and does not limit me, I have no need to use different ROM, it's more of a want. But i do not see me doing anything until the system stops being supported or it breaks or something else. So it depends on how you use it.