You just don't have a comfortable PC setup probably, both software and hardware.
N64/PS1 and before has completely perfect emulators, with Retroarch CRT shaders and a unified interface. PS2/Gamecube/Wii is really good. PS3 is hit or miss. Switch emulation is better than a real Switch already though, just looks better and runs better, the Switch is so weak.>>583189
Eemulation is legal and I have all my games from legal backups I made myself.
The entire emulation community exists on the premise that we all pretend we dump the games from our own discs/cartridges, if you don't, then politely lie about it and we'll politely pretend to believe you, it's amazing how people are too stupid to do this and come into official emulator channels with "hurr durr i downloaded game and it no work"