Good man yourself!
Yes removal is the way to go if it is not fully adhered.
Either scrape off with blade/scraper/chisel. If it’s tough then a good trick is to trowel some cheap rubbish tub mix adhesive over it, then it softens up - about the best use of tub mix.
Glad you took it off, for future if you have one a steam wallpaper stripper works a treat score down the wall with a Stanley knife. A sharp scraper, and jobs a good un. Still a pain though.