Thanks! Your instructions worked well. I wasn't sure if that was still the preferred method when NextCloud has a new updater built-in to the admin page now (as of 10.0.1?). I tried theirs, and it failed sometime after maintenance mode was enabled, but before the update could finish. I ran your update instructions, and it seems to have updated perfectly.
I'm new to OwnCloud/NextCloud, and I was surprised when some of the apps I was expecting to be available are apparently only available for people running NextCloud v11. It appears that 10.0.2 is the latest stable version, so have developers just pulled apps until v11 is available? A quick Google search seems to say that v11 is when a new app store-ish feature will be released - so developers are just targeting that?
If so, that all makes sense, and I'm happy to wait. I just wanted to make sure I'm not missing some easy/obvious way to run these apps in the meantime? They just don't seem to be showing up in my NextCloud apps section as being available to install. Specifically, I'm looking for the News app, the Spreedbox video/audio calls, QOwnNotes API, etc.