It still sucks though. It doesn't play nice with dark mode on Windows at all. I've been trying to get away from Google docs and I was hoping Libre would be a decent alternative, but it just feels bloated and clunky in comparison. I really wish it didn't.
It doesn't suck, it's just different from what you are used to. Especially the compatibility to Excel-Formulars impresses me.
But of course there are open source alternatives. OnlyOffice is often recommendet if you prefer the Microsoft Office look. I think you could also self host it to make it a real alternative to google docs, but I haven't looked into it.
Avoid Openoffice, it sounds similar to Onlyoffice. It is the predecessor of libreoffice and deprecated.