If it helps, for all fairness, the Nintendo, Sega, and Sony consoles were all Japanese, so NTSC was their native target before getting converted to PAL. It may not be what EU kids remember growing up, but NTSC is technically more “correct” from that perspective.
With that being said, always use PAL filters with PAL versions of games and NTSC filters for NTSC versions.
And then your European players wonder why the color artifacts are all wrong. PAL and NTSC had different distinct looks (and presumably so did SECAM).
If it helps, for all fairness, the Nintendo, Sega, and Sony consoles were all Japanese, so NTSC was their native target before getting converted to PAL. It may not be what EU kids remember growing up, but NTSC is technically more “correct” from that perspective.
With that being said, always use PAL filters with PAL versions of games and NTSC filters for NTSC versions.