Yochanan is correct. Just install downgrade and then downgrade squashfuse to version 2.0 for now and when asked to add to ignore update list tell it yes.
Manjaro has no means to fix it, it simply follows Arch upgrades because it’s an Arch based distro, so the correct behavior is to report it directly to Arch bug tracker.
While one can reproduce the issue on Arch, in this case the problem lies upstream, not with Arch. It seems you did not read the guidelines before creating your Arch bug report:
If Arch is not responsible for a bug, the problem will not be solved by reporting the bug to Arch developers. Responsibility for a bug is said to lie upstream when it is not caused through the distribution’s porting and integration efforts.
To help Manajro people noticing there is a problem with Appimages after latest upgrades.
Manjaro is not Arch. Arch is not Manjaro.
Manjaro is an Arch based distro, so logically it is an Arch distro.
While one can reproduce the issue on Arch, in this case the problem lies upstream, not with Arch.
Well, some fixes need a lot of time to finish and to test, so Arch can downgrade that bad package or at least write about in their home page to indicate to people how to fix the issue while waiting for the fix to be released.
I understand you were trying to help, however you did not provide any information whatsoever to help anyone.
Arch very rarely downgrades packages. If it’s an upstream problem, the package maintainer creates an upstream issue if one doesn’t already exist. Upstream fixes will be applied if necessary, otherwise they wait until upstream releases a new version. Users can temporarily downgrade the package in the meantime.
If there is something users need to be aware of when updating, they do: Arch Linux - News
Since you’ve ignored everything I’ve said and insisted on arguing, this thread is now unlisted.