Yeah it is, i'll add the console as a platform but you are fine to submit any runs on it. No one has done a run on it yet so we don't know if load speed or performance would require us to split up the different consoles into their own variables.

Assuming the PS5 runs the game under the same emulation system as the PS4 version then there shouldn't be any problem. But like Glitchedd said, we still need to analyze PS5 footage of the game running to judge if it warrants any change in the leaderboard.