[resolved] Discover shows apparent duplicate (triplicate?) flatpak updates

(Neon, after 24.04 rebasing) Discover v6.2.2 using frameworks 6.7.0 and Qt 6.8.0
As can be seen in this screenshot, I’m being asked to update Flatpak application support pieces that appear to be the same thing three times. I am suspicious of this and want to find out what is going on.
The More Information hasn’t helped much. The version numbers look the same. I don’t know why I have multiple options, is it a dependency thing? How can I find out which application uses which support pack, and how can I know which ones I can remove without breakage?

…or, is this a known bug?

Flatpak can have different versions of a thing, and different apps might depend on differing versions. I suspect these may be different parts or components, considering the differing file sizes but the same version number, such as the 32-bit version of some of these.

You should be able to view more details by clicking on the individual items, or investigating more details on the command line using flatpak list.

On my setup, I have three different mesa things: the 64 bit and 32 bit versions, plus the Extra (64 bit).

You might consider trying a cleanup of unused flatpaks once in a while, which might remove things you no longer need that got left behind somehow.

flatpak uninstall –unused

Yeah, thanks. Digging in with flatpak list shows that it is different components / requirements for apps. Mostly Steam’s fault I think.
Didn’t get much help from the uninstall --unused option, interestingly. What would really help would be a way to point at a runtime and find out what uses it, but the syntax defeated me so I ended up going step by step asking to remove runtimes and seeing what the damage would be.
I think there’s scope for making this kind of management less painful but the immediate problem seems to be fixed.