Speaking of Flatpaks.
I ran into a strange issue. It had an error duing update (command line of course duh! ) It gave me a warning but I didn't know what was going on. Why a warning for a Flatpak? Well I am running it on a system that is using Flatpak along sides other sources. (not sure if this is the case for the OS that only use flatpak like Silverblue, Bazzite etc. Somethow I think that isnt' the case. ) Anyway. It appears that some of the most popular Flatpaks provided are outdated. They have a needed resource I believe version 24.08 and it is no longer supported. Needs to be updated. Well, it doesn't do it by itself. At least not on my OS (one of the resons that people still aren't going to be able to go fully into Linux. This is on MInt) Apparently my system image I used and versoin is old enough that this happens. Anyway a quick Google search away and I was given some commands to clean the flatpaks that are old and the old Flatpak components (apparently they will sit there happly wasting your space until removed) and force the supported flatpak to the newer versons. One flatpak is still outdated but I got 4 of them moved over. A command (yea commands) later and I was able to confirm that they are using the newer versoin of teh requirement.
Time from noticing the problem to solution. 5 minutes. Most of that was searchng on Google. lol.
So far this hasn't shown up on my immutable OS system. It seems to update everything as it goes. (it only uses flatpaks not a mixed enviroment)