Will upgrading to 2TB iCloud storage allow full access to all files on my MacBook Air?

I'm thinking of upgrading my icloud sotrage to the 2TB option at £9 a month. I'm running out of space on my MacBook Air, I've gone through files etc and removed things no longer needed and am still quite close

to full. If I move everything to the cloud, will I still have full access to everything on my laptop. For example, I play Football Manager 2024, would I still be able to access the game and all the files (graphics and saved games) still work as they should. Any help would be most appriciated. TIA