PopOS is based on Ubuntu, so the Phased Updates answer above most likely explains what you're seeing.

If you want to force the immediate upgrading of a given package that is being delayed by phased updates, you can apt install it. (However, note that this will also mark the package as manually installed if it wasn't already, which means that if you later remove everything else that depended on it, it won't join the list of "no longer needed" packages which get removed by apt autoremove).

Typically updates that are being phased should be relatively unimportant, but if you want to know what you're missing you can also say apt changelog and apt policy (supplying a package name as an argument) to find out what has changed.

imo phased updates make sense, but ubuntu's current implementation of them is terribly confusing for commandline users who aren't aware of them.

edit: actually according to this and this PopOS disabled phased updates in their focal (20.04) branch back in March. Maybe they've come back in jammy (22.04)? Or maybe you actually have some other conflict causing packages to be held back.

edit2: I see ubuntu lists all of their currently phased updates here and there are far fewer of them currently so this actually does not explain what is in your screenshot. I would guess that you perhaps have installed some non-standard package that conflicts with the pipewire upgrades; perhaps you can find out what it is by saying apt install pipewire-bin and seeing if it asks to remove something in order to upgrade that.