My parents did not overtly discriminate in this way. We were all treated the same. My mom was apparently raised "like a boy" because she said when she went to college she was shocked that the clothes she threw on the floor in the morning were still there in the afternoon. My kids were all girls (at the start, at least) so I can't be sure I wouldn't have treated a boy differently, but because of my relationship drama with their dad, the older ones had to grow up more than the younger set and it shows, in their acceptance that stuff has to get done, responsibility I guess? The last two have had a longer runway to be kids.
Both my ex and my husband were raised by single moms and both did/do as much household stuff as I do, though that's a pretty low bar to reach.
I agree somewhat with @Bubbaonthebeach@lemmy.ca , although I always outearned my ex, and my straight daughters also outearn their partners. I did not raise anyone to value people based on their wages. Me & my husband now just treat it like a competition - he wants to make more than me, so I try to make more so he will make more. Which, honestly is the best. My ex just figured if I made more he could make less, so we stayed poor.