Refresh the bath, not the whole room. Keep it easy to use. Add good light by...

https://www.nav-bookmarks.win/refresh-a-rental-bathroom-without-a-full-renovation-by-fixing-small-defects

Refresh the bath, not the whole room. Keep it easy to use. Add good light by the basin. Use a slim unit, hooks or a shelf for daily bits. Ask what tenants need