There’s only one worth talking about and that’s RPCS3 but for anything remotely demanding the deck’s CPU is not good enough. Even modern desktop CPUs can struggle with PS3 emulation due to its relatively complicated architechture.
RPCS3 also runs pretty poorly on AMD CPUs without AVX512 like the deck’s.
What games are you ultimately interested in ? Some of the lighter ones will run fine though but if they are multiplatform like say RDR1 better off using an alternate eumlator like Yuzu for switch.
WipeoutHD ran okay iirc but even LBP1 struggled for me.
Yeah this game seems to run pretty well! And make sure you set each game as per recommended settings on the RPCS3 compat list.