I have been looking into cryptpad, but I don't know if it is really secure/private, but it appears to be a privacy-oriented, self-host able google doc alternative: https://cryptpad.org
Here is an alternative Piped link(s):
Piped is a privacy-respecting open-source alternative frontend to YouTube.
I'm open-source, check me out at GitHub.
No, Libre Office is offline only.
You need to look at something like Only Office, a free/open source web based office suite, which supports collaboration.
https://www.onlyoffice.com/blog/2023/07/self-hosted-onlyoffice-docspace
I stand corrected, there is a web-version of libre office, although they don't support it directly, they do provide builds etc.
Read more here : https://www.libreoffice.org/download/libreoffice-online/
Yeah also the site doesn't seem to bring up the the keyboard on mobile. Which kills this as am alternative to google services.... For now