A (sort of) better autofill
instead of having primary and secondary there should be an ordering from best lane to worst lane you get to choose.
like this - (I am not a professional artist pls forgive, u may need to get reading glasses for this)
But on top you would fill in your main role (mid in my case)
in the middle you would fill 3 other roles you are somewhat ok (top,sup,bot for me)
and on the bottom you would fill in that one role that you are absolutely disgustingly godawful at by just not giving it to you period (jg in my case)
This could help you by not giving you that role you really suck at, and not drastically reduce wait times at that