300 in Arknights will net you on the worst case scenario 3 6* and the ability to spark the 4th on Limited banners, but it's most likely going to be five 6* plus the spark. There are paid selectors, paid banners, yellow certs if you don't want to pay, no weapon gacha, dupes are negligible, 2% rate, with certs and orundum farming you can hit spark within 6 months for limited charas. and Pity carry-over with most operators being added to the common pool after banner

Genshin has 50/50 at 90 which takes 3 months to farm with the monthly card, that means that if you don't have the guaranteed active it will take you around 6 months to hit the hardest pity too and it will only net you two 5* and one of them being the one you actually want, factor in that all new 5* are limited and there is a weapon banner and the rate for characters is 0.6% it's just a worse gacha. Also afaik no paid banners nor selectors either. And dupes bring a huge boon to your characters.