GParted 1.8.0 [1] has just been released which includes the fix for this issue [2].
[1] GParted 1.8.0
https://gparted.org/news.php?item=260
[2] GParted should not disable 64bit feature of ext4 file systems it creates
https://gitlab.gnome.org/GNOME/gparted/-/issues/295
Thanks,
Mike Fleetwood (GParted Developer)

