do not be naive ,nobody would make public fixed games ,real fixed games
and yes they do exist
there is a whole business but you definitely will not get anything solid for free and even for some small change
99.99% you get either scammed or used to shift the odds in the right or needed direction
also if you get caught or even suspected of betting on fixed games you are blacklisted on all and every bookmaker out there with bets voids and no refunds ofc