Depending on ages if the child its also worth considering that actually some of the games are amazing.
My dd used to play wolf game... She had to hunt.. (amazing graphics) and kill elk to feed her cubs... Raise a wolf family, find caves etc.
Animal jam... Amazing world.. Made by natinal geographic.. Different lands, dens to be customised... Adventures to deserts, volcanoes... Water falls... It was amazing!
Then Minecraft.. Wow!! Endless learning and creation there... Building railway tracks, mining for iron... Getting bone meal to grow their vegetables!
Roblox.. Again endless learning and possibilities.
I think ultimately its about balance.... Dd was and is an amazing student... She would be allowed about an hour and would earn more time by doing small extra work..
She s an absolutely avid reader... Couldn't read more then she does, works really hard at school and gets top grades.
As a family we do loads of museums and usually pre covid a Sunday outing somewhere... So I can't see any issues with her being on screens as her down time.
The other one is slightly more tricky but.... Using the screen time as leverage, I've got a reluctant reader, reading and they need to read in their games.
They play alot of variety across the games they play.