Old RPI 3b+ with screen as home assistant tablet

Hi Group,
i had one 3b+ extra and decided to create one more smart tablet for my home for displaying basic (mostly static) data on it. Ordered this screen (great for the price) - 7" touchscreen connected and went on the internets to check some project ideas (like i did for the regular on wall android tablet). To my surprise i didn’t find any “simple” project with RPI screen.
So, does anyone have any suggestions how to set it up? Best practice? Maybe to put some android based OS on it with kiosk app or is there something better for an old RPI?
Thanks for the ideas!