like you said, femboys and trans arent the same but they are similar on some aspects, especially behavior. they both make it a huge part of their personality online and they both goon. and of course that trans gro/mer i mentioned earlier liked it when i made femboy roblox avatars
i thought i should also mention a different person i was friends with on 'c/rd who became a femboy, found him through a dev studio and he made small servers with the same people but they all died out in months. from the start he was pretty chuddy posting racist memes as well as hitler related memes. he also obsessed over every single troonslop he would find in the wild, screenshot, and post it for us to see. probably one of the reasons why he ended up like a femboy
eventually he made a femboy avatar as a "joke", made his last server, and would go into the absolute brimstone hellspawn of roblox, 'rate my avatar', filled to the brim with furries femboys groomers trannies etc where he would get most of his screenshots. he would invite people from this game to his server and it came to a point where there were more femboys than actual people in the server, even making a role for them. they frequently posted crusty thigh pics in every channel and he would do nothing about it, he was desensitized and he even enjoyed it. then i exposed one of his trusted members for having the most brimstone epi goonerslop fetislop femslop outfits saved on roblox (many with bypassed items) and right after this i was banned. server has ~100+ members from the last time i saw and i could start a raid but its a literalwho and i dont want to be identified
overall, femboys are similar to trannies, very similar styles, though different concepts. they both have frequent gooning activity and the roblox avatars they have are total oversexualized brimstone, sometimes ill just hop into a normal roblox game like tdx and i would find one at the spawn in seconds. i would assume that femboys were originally chuds but they become femboys instead of trans because of their chuddy background. very hard to find a femboy that isnt a gooner though especially when socks and thigh pics are a big part of their personality