The second one isn't technically genderswap but they run with a lot of the same tropes. Then there's like 10 other ones that are just genderswap bishoujo but doesn't go with the loli route
I Became a Beautiful Girl, but I’m still an MMO Junkie (Bishoujo ni Natta kedo, Netoge Haijin Yattemasu) has a VERY similar premise to this story as it also didnt explain why it happen like this story (atleast to the point i read to)
tho in I Became a Beautiful Girl, but I’m still an MMO Junkie it starts getting very weird (in a good way) as some things in the game start to appear irl (yes mc did change irl into their in game avatar), there was a part where a in game religion just suddenly had a church irl and NO ONE except mc with a few others questioned it.