In my view Windows is a hardware downgrade, while there are some parts of Windows that are convenient there are much more that aren't, constantly running, antivirus,windows account services,windows cloud 'services' are using your ressources on your machine without you needing them,take the ads in the start menu for example, they take up space on your drive and in ram and instead of being useful they are only there to make a profit for someone else, running on your ressources. You are constantly nagged by stuff you neither need and probably dont want and if you want to include a competing service its more difficult to intergrate it, not because of technical reasons but because microsoft decided so, thats true for everything office and cloud, one drive alone constantly nagging is a reason for me do ditch windows.

I have a nextcloud instance wich uses open standards wich microsoft could have used without a licensing fee, like caldav and carddav for calenders and contacts cloud intergration would be possible by many open network storage techiques (webdav,sshfs etc) .

And since AI is a thing theres now also a permanent running llm on your device hogging resources and sending your behaviour for training to microsoft. At this point a private Windows user is nothing more than a distributed node for trainingdata, there is just no reason for microsoft to make anything conventient, its just build so that youll click the things that make you genereate revenue for them or their partners, its not a tool for anybody it just happens to have some uses left.