After that SS Egg event in 2019, can I get the Pokémon Breeder medal if I don't already have it? And can I get Eeveelution Master - yes, I finally got them all?
Correct, they should be there now! Hmm not for now, the badges are actually being reworked since the battle system became defunct over the years. Stay tuned for your chance to earn them!
I think I still need to get these medals - Starter Get - First Catches - Starting Levels - Fossil Excavator - Novice Reporter - Catch Master - Catch King - Legendary Catch - Legend Tamer - Legendary Master (if Legendary Eggs counts) - Creative Passion - Contest Winner (if Summer Scramble event counted) - Summer Scramble 2021 - Winner
I think I've qualified for the shiny get and starter master badges, since it doesn't seem like there are any gen 8 Pokémon yet and I found quite a few Shinies while trying to get all of the starters.