I feel like it makes more sense to have the free roam categories be labeled as "Free Roam 100%" to be more in line with Absolute Drift's categories and because it does a better job at describing the run.

I also think the individual maps should be moved over to level leaderboards so that group can be used as a variable like with career speedruns to clean up things a bit; though I understand if this is too difficult to do.

Yeah I agree, it's the wrong way around - it should be the list of maps at the top (alongside "all maps") then inside each you can select your vehicle tier, just like in career. It'll make it consistent and just better overall.