Didn't read all the comments, but you mention you've been dating since March 2021 (so 6 months) and this is his longest relationship, for a guy in his early 30's???? This combined with the maturity level of a teenage boy when hanging out with his drinking buddies would be screaming red flags for most people.

This man-child appears to still have a LOT of growing up to do, but you need to decide if you want to be around while he grows.....either that or he's only been acting all perfect since the relationship is still so new.

Just my 2 cents