Never used fabric softener and I’m over 50.
For less than $50 you can buy a steamer that removes wallpaper. Once you use the steamer, you will never, ever use anything else. With it, I can remove old wallpaper faster than you can put up new wallpaper.
Wallpaper? Good grief is it 1982? lol. Seriously I haven’t seen wallpaper in twenty years and that includes going to older people’s home. Wallpaper seems to have disappeared.