Went to Poland for a few days and encountered the type e plugs and I immediately hated them because they interfere with chargers and they weren't reversible.

I thing it is about the cord vs the plug. The plugs are as they are in the picture, but most cords are in F+E configuration. That is, there is the ground plates on the side of the cord (F) and there is a hole in the cord with a springplate to connect to the ground thingy in thr plug (E). I have two extension cords at home of the same brand, one in E and one in F configuration, but all my cords are compatible with both. I'm a bit unsure on this, but I may have seen a plug with E+F configuration in a country which usually goes E, but definetly never in a country with F config.

UK uses type G. Type E/F plug has both contact for grounding pin like in type E and two sliding ground contacts on side like in type F. Sockets are either E or F, and i've mostly seen E

I've seen E in France.