Xubuntu 20.04 disaster

[Colin Law]

On Fri, 20 Nov 2020 at 06:06, MR ZenWiz <mrzenwiz at gmail.com> wrote:
>  At
> that point I finally realized what was going on and ran fsck on /home,
> and there were a bunch of errors that got fixed.  After that, the
> reboot worked properly and is happily humming away.

That comment, plus all the strange other symptoms you describe with
libreoffice etc lead me to suspect you might have a dodgy disc.  I
suggest checking the SMART data for the disc. Don't ask me how, I
always have to google it on the rare occasions I need it.  If that
shows ok then have a look in syslog to see if there are any possibly
related messages there.  If the disc is not dying then it may be you
have corrupted some system files somehow.  The machine wasn't right
before the upgrade so the problems may just have been shown up by the
upgrade rather than caused by it.

Colin