I get a strange "OpenOffice/LibreOffice knock off trapped in some alternate 90s" vibe from Google Docs and I've never quite used Google Docs enough to detest it, but every time I am asked to use it I find it's off-putting feeling for a web app.
I've used the web PowerPoint to present from in a pinch, and I've used the web Word to write from in a similar pinch, and other than obvious native control distinctions I think in most circumstances I'd be hard pressed to tell you the difference between the iOS/Android versions of Office applications and their web counterparts shrunk to that form factor. Sometimes the same can be said between web and desktop, though ironically right now the "Simplified Ribbon" gives web away immediately right now for the Big 3 (Word, Excel, PowerPoint). Microsoft has been doing a good job converging the experiences and all the platforms still feel like "Office" to me, at least.
I think I still prefer to use the desktop versions day-to-day over web, but I don't know how much of that is just inertia that I always have them installed anyway. But I do wonder sometimes if I were to experiment with another run at a Linux only system in my life if I'd feel the web Office was sufficient for most of my needs. (Hence my curiosity if you'd tried it.)
As for using Linux day to day, go for it! When I started, it wasn't easy. Mainly because you had a lot of SWF out there still, and everything say, like video calling, was an EXE. These days, with the rise of the web based everything, it's a cinch. As much as I despise Electron on principle, it's been amazing for the Linux community. Now we have VSCode, Slack, etc. Nothing requires an EXE anymore, even gotomeeting believe it or not. My biggest pain point was email. Evolution is OK, but not great. I just started using OWA and it gets me by.