Some changed opinions about this one so far... I think a format that prevents you from playing against others who have outspent you by a significant amount in gems (maybe a difference of 25%) would make it better for newer MTG Arena players to enjoy the early parts of the game.

I think formats like Standard 2022 helps people who came to MTG Arena within the last few months prevents them from having to play catch up against all the Throne of Eldraine power houses.