Not a chance the PS5/Scarlet are equivalent to an RTX 2080. The RX 5700 XT is the best Navi card atm, it's not as good as an RTX 2080 and it costs $400.
Performance will be closer to the RTX 2060, a little below the RX 5700 (non XT).
LTD: PS4 - 125m, Switch - 110m, XBO - 51m
2020: PS4 - 9m, Switch - 22.5m, XBO - 2.5m, PS5 - 4.5m, XBX - 2.8m