Thanks a lot, I think these resources will help me a lot, something breaking down all the layers will help understand what is talking to what and why.

They did, and then I put linux on it, so I created the problem I guess. (But struggling a but with office every now and then is better than dealing with windows always)

I really dislike microsoft office, but the unfortunate reality is that it is used everywhere and it is such a disadvantage not to have, onlyoffice works great for me but the risk of things not looking right when sharing with someone with office is quite big. So I really like this progression, needing to run a full windows emulation to get office is a pain.