Upon further review of his tiktoks of him addressing his sexuality, he's claimed that he's straight. Nowhere does he state his preference for women (ie "leans towards women" as you've suggested), implying he's simply straight rather than being remotely open to the possibility of sleeping with men. However, he has claimed that he is flattered by the "aggressive" advances of gay men but that's just that. Flattery.
So until there's legitimate screenshots of these grindr or snapchat encounters (the latter which you've stated is "difficult," but not impossible), it's most likely the works of a catfish and thus are baseless claims/rumors to bait gay men in hoping he's anything other than straight.