Help Viza

Hello, i need some informations about family permit, i'm in Romania and i want to join my uncle who's already in uk, was before the brexit and have pre settle and he's working there, so i want to join like his nephew, can i do this? Thank you.

I doubt this is possible.
Refer to the government website: https://www.gov.uk/family-permit
Only close relatives are covered - not uncle/nephew.