Mvp

Can only a member of the tournament winning team get mvp?

not in valorant but Twistzz, a Team Liquid CSGO player once win an HLTV MVP even through TL lost in the grand finals
https://www.hltv.org/news/24960/twistzz-earns-esl-one-new-york-mvp-medal#:~:text=Liquid%20star%20Russel%20%22%E2%81%A0Twistzz,by%20HLTV.org%20and%20betway.

in Valo thats how it is i think
Lot of times there have been performances from players who were better than the winning team's mvp