This could just be an error in your system settings, here's how to fix it
Go into settings -> Devices -> Mouse -> Primary button: Right, it's saying "right" instead of "left" right?, okay, so you wanna click that and set it to left.
Problem should be fixed, if further issues occur, then most likely contact the team.
I did realize that similar issues where reported when the armorstands were implemented but I do not consider this a duplicate considering the fact that a lot has changed with entities and their NBT, Datapacks, etc. This has now become an inconsistency, once again, if you compare it to the item frame who was added the NBT Invisible in 1.16 that does not make it Invulnerable. If inconsistencies get flagged as feature requests or duplicates because of outdated bug reports, stuff that was overlooked by new mechanics will never get optimized.