Disable Skype
Skype tends to enable itself once invoked, explicitly or not.
Here: disabled:
~> sudo systemctl list-unit-files | head -1; sudo systemctl list-unit-files | grep -i skype
UNIT FILE                                  STATE           VENDOR PRESET
snap-skype-234.mount                       disabled        enabled      
snap-skype-235.mount                       enabled         enabled      
If enabled:
~> sudo systemctl disable snap-skype-234.mount
~> sudo systemctl disable snap-skype-235.mount
When running:
~> sudo systemctl -a | grep -i skype
  run-snapd-ns-skype.mnt.mount             loaded    active     mounted   /run/snapd/ns/skype.mnt
  snap-skype-235.mount                     loaded    active     mounted   Mount unit for skype, revision 235
And:
~> sudo systemctl stop run-snapd-ns-skype.mnt.mount
~> sudo systemctl stop snap-skype-235.mount
Troubleshooting
Marc Girod
Sun Sep 25 09:44:07 2022