yes it was on the same user. agreed, I definitely removed something I shouldn’t have then installed again using the package list but something got messed up
I would use ly in your case and remove lightdm altogether.
Then I would use the system for some time to see if it is stable and no other weird issues showing up.
If so, I would leave it at that. But this is all suggestions. You should consider your options and decide your next move.
The picture is from www but it will give you an idea how the login screen looks like with ly.