N64 games will also run in 60Hz in Europe
Nintendo of Europe have given some more info in the European version of N64 games

Published: 12 Oct 2021
Later this month Nintendo 64 games are coming to Nintendo Switch through a new membership tier
Many have been wondering what version Europe and Australia will get, as originally Nintendo 64 games in Europe and Australia had the PAL version that ran at 50Hz. While the rest of the world had NTSC which ran at 60Hz
Games run a bit slower in 50Hz, compared to 60Hz and the resolution was also a bit different between the 50Hz and 60Hz
Nintendo of Europe just announced following:
All Nintendo 64 games included with #NintendoSwitchOnline + Expansion Pack can be played in 60Hz English language versions. Select games will also have the option to play the original European PAL version with language options.
Based on the information, there will be an English 60Hz available for all titles. Some titles will also feature an option to play the 50Hz PAL version
We sometimes publish affiliate links and these always needs to follow our editorial policy, for more information check out our affiliate link policy