@moson @cfinnberg
Thank you guys for your help. I have to say that I didnt get to the point to use these commands because before I saw your replies I kinda fixed the problem by deleting the /etc/X11/xorg.conf file, rebooted, and it booted to Plasma shell.
It turns out in most cases when it comes to graphics (or rather nvidia) drivers, the reason why you end up in tty without sddm launching or drivers working is misconfigured xorg file which I assume gets automatically created when you install/re-install drivers.
Regardless , thank you for providing the solutions to the actual question I asked and I hope this post will be of help to someone in the future.