Change in and of itself is neither good nor bad. It's the impact of that change, positive or negative, that cause folk to speak of "good/bad" change.
Others in this thread, and in the past, have spoke about change designed to "sell"... "look, this is new and improved!" Well, marketing aside, new, yes, but improved? More often than not, more'n just a few people disagree that the change is an improvement. You're never going to be able to please 100% of your audience or customer base, but if you can keep most of 'em happy, you're doing allright. I don't think the tech companies are... and they're forcing their (re)designs on their user base. Being forced to live with a crappy product because you have no other option (vendor lockin, E/E/E, etc) rankles most folk.
For me, the biggest thing I loathe about the MS-change-parade is that they keep messing with the gorram start menu. Old Win10 LTS build? Button X is up there. New Win10 LTS build? Button X is now over there. Win server? Button X went that-a-way, padnuh.
I like to operate on muscle memory. For the first few clicks interacting with the start menu, I want my user logoff, control panel, and windows explorer icons in the same spot. As I drill down into the menu, of course I might expect things to change (as programs are added/removed, etc).
I like to keep my memory sharp by, y'know, using it. I want to be able to remember where a particular program is (or where I moved it to in a way that made sense to me). Sure, it's nice to have a search function to go find a not-oft used program or file, but I don't want to have to depend on that for day to day stuff, and that's the way MS and others are heading because they're following Google's lead (right off the cliff, perhaps...)
IMO, Microsoft was lazy, trying to make a one-size-fits-all GUI that served desktops, tablets, phones, etc, and they failed in this endeavor, and made everything sub-optimal across all platforms.
If MS came up with a Windows desktop that went back to the look of Windows 2000/NT, clean, no frills, back to the old start menu, everything in one control panel - I would kiss them on the feet, even if I had to play whack-a-mole with telemetry blocking on a regular basis. But, they're too far gone down the road for anybody except a risk-taker with an exceptional set of balls to turn 'em back. Not holding my breath on that one...
I'll leave bitching and moaning about the UX/UI industry and its failings in general for another day.