sometimes sure, but thats only in specific clips.
as someone who has watched top 500 mercy’s before (for fun i might add), you can sometimes confuse their clips for a gold/plat player if you dont know who your lookin at since so much of the gameplay is done for them.
the highest skill aspect of mercy’s kit is her movement, but ow2 simplified her mobility to make it easier to use and in doing so the most difficult part of her kit is the decision making on how to move
this makes it harder to tell a top 500 mercy and a plat mercy apart unless you actually play the hero
in ow1, the difference between a top 500 mercy and a diamond/master’s mercy was night and day, today the difference between a top 500 mercy and a silver mercy is almost entirely game sense which is harder to ‘see’ beyond “oh yeah that was the right thing to do”.