I tried using Office 365 recently for a small side project after using Google apps for years.
Their email has like 5-10 messages come in every day about hotfixes, updates etc. Even after turning everything off, I still get a few emails from them every few days. Missed important emails in all that noise.
Outlook randomly decided to delete all my emails on my phone for some reason. I had to relogin and resync everything. Did not even realize this had happened and did not realize till a week later that I again missed a few important emails.
Lets not even get into Teams. Works only on Edge on a Desktop. Plus, starting a meeting seems to be rocket science. Still have not figured out how to blur the background in Teams.
Let me not even get started on Onedrive, the 1TB free storage is what drew me to try them out. Problem is 10MB took 1 hour to sync. How hard can syncing be...Google does it, Dropbox does it without any issues on Windows. But Microsoft cannot...
Sorry for the rant, but MS literally made me kill that side project and I am bitter about it. I just cannot figure out how it can be this bad and how MS is still surviving.