Yup. I have not tried using a non-GoogleAndroid or iOS smartphone, but what you describe perfectly reflects what I experienced when I went started to work for a large employer 16 y ago. I had been using Linux as my main OS on desktops and mobile computers for at least 15 y by then. Slowly the grind of hacking my system to access the VPN, check email on their Exchange server, open MS Word docs.. it all pushed me to MacOS from about 2015 - 2021. Eventually I could not abide by Apple's incompatible hold on my data, Gatekeeper (I really hate the concept that they must approve software I want to run on my own hardware) and the unrepairability of their machines.. so I am now on Win 11. Right now, considering the trade offs, I think this is the best choice. I see a lot of people extolling Linux lately, so maybe it is time to try going back.

Back OT, smartphones were always less open than the general purpose computers of yore. And it looks like they are increasingly a requirement for participating in many societies. In general I don't find this a good thing, but have little faith that regulators will 'solve' is because they have their own pitfalls (recent examples from EU: age verification and chat control).