what bar are you talking about?
back, forward, home, favortie, tab, and setting bar?
i also have fold 2 with samsung browser v 126.96.36.199 but its still at the bottom of the screen.
can you share the screen shot?
try reinstall the app.
I tried to look if theres any setting that we can change the menu bar location but couldnt find it.
menu bar on top looks better. wish mine was on top lol.
try clear the cache. settings -> apps -> samsung internet -> storage -> clear data.
if it doesnt work, try uninstall and reinstall.
let me know haha