It is impossible to say.
If you skipped the last snaps - because you thought packages would stabilize - then you thought wrong.
Packages are how they are - and customization my cause your issues.
Most likely you have customization that is not compatible with the new set of packages.
Perhaps consider → [Consideration] Is Manjaro the right distribution for you?
If you are using Plasma and have old plasma 5 themes and neglected to revert to default - that could cause issues.
If you are using Gnome then shell extensions may cause you pain.