That file shouldn’t be there, it should have been removed some time ago, replaced by 99-jammy-overrides, but looks like yours didn’t for some reason.
These probably don’t belong, either. I don’t have them on any of my neon systems, but I vaguely remember these, possibly from the 20.04 days? I don’t have any 20.04-22.04 upgraded systems any longer to verify.
The contents of these apt pin files may be mucking around with package dependencies on your system. This probably explains why the pins to keep the Firefox Snap thing from installing (in org-kde-neon-net-launchpad-ppa-mozillateam-pin) aren’t working.
You could try moving those 4 files I have quoted out of that directory, and then do an apt update and full-upgrade, and see it that helps. If this has been happening for a very long time, it may take some extra work to get through, possibly.