This is something that I have seen in in many online communities, as well as in real life. However, as a bi woman myself, the fact that gay women are treated "better" than gay men is a load of BS. Even in the LGBTQ+ community, there is still misogyny. A lot of the "arguments" made to think men in the community are worse off than women don't really see what we go through on a daily basis.
Like, there was someone online talking about the lack of men gay couples in TV vs woman gay couples. However, a lot of the women couples are sexualized heavily by men, as the only reason why these couples are popular is because of corn sickness scrotes wanting two women have sex. This also correlates to real life. Me and many other women who are bi have a fear of telling future partners who are men because of the awful stereotypes a lot of people believe: we love threesomes, we love having open relationships, we are "freaky", etc. Another gross stereotype is that "most if not ALL women are bi and want to have sex with women as much as men" (this is sooo not from some gross corn stereotype *eye roll*) It makes me sick and makes me second guess telling other people, especially men. I would rather have the less quantity of representation than having a ton of it just to be only seen as a tool for dick beating creeps.
The number one reason why it seems wlw seem to be treated "better" than mlm is because of the fact that we are sexualized to no end. Just look online and all around you. There are men who live for two women (or more) one man corn, lesbian corn, creeps writing gross comments online about wlw couples, etc. They only "support" us when we are a tool for their perverted desires.