FWIW 2019 Mac Pro shipped with Catalina with no possibility to downgrade to Mojave since it did not contain the needed drivers for hardware. Catalina was a dumpster fire of an OS, with roughly half the updates introducing really annoying problems, and the other half, kinda, sorta, mostly okay.
Big Sur has given me no real issues, but running with 28 cores & 384GB RAM so it can waste resources in peace and I don't really notice.
Apple's OS quality has walked off a cliff, but, on the flipside, nobody has stopped buying it, they just had their best Q in history despite supply-chain problems and WW III starting, and their stock has done nothing but print money for me. Apple's stock used in lieu of a bank still results in $1 of purchasing power, being worth roughly $1 a year later, and then some, vs. the fiat currency of $USD which is worth less and less every month, so... Apple actually has very little reason to fix problems or pay attention to their software quality, because people just keep buying the hardware anyway.
As a user of their products: not thrilled, its become something I just tolerate. The hardware keeps improving at a very rapid pace... their software keeps getting more and more unstable, while adding little of value other than endless dumb features, while the core OS falls apart/doesn't ever get fixed, and the complexity just keeps growing. Remaining on a legacy install is only viable for 2 years, before security patches stop coming, at which point it's probably a very poor idea to expose your computer to anything except your own network.
As a shareholder: very happy with the company.
Therefore: nothing is likely to change, because people keep buying it.
