I recommend FreeTube on desktop or NewPipe on Android. Tubular = NewPipe with SponsoBlock and Disklike button, but sadly does not get updated that often.
All a bit more work with keeping subscriptions in sync manually, but so much better experience than YouTube native.
I tried Cryptpad and Nextcloud Office Suite and the latter is what I went with.
Two main reasons:
Nextcloud does offer different office integrations. I use their Office bundle which can run a bundled small Collabora server (no separate setup needed, one-click install). For my personal self-hosted environment perfect. Would recommend a dedicated collabora instance in business environments.
Collabora itself is based on Libreoffice and their online UX is just amazing. Such a good use of screen real estate. Great product really. As I had Nextcloud already running it was an easy decision.