Routes with .html ending as well

Is there a way of getting routes like www.example.com/about/team.html and www.example.com/about/team/ working simultanously but with a redirect from *.html to just that path

I’m not sure I understand this; but redirecting via a pattern is usually done in the .htaccess file via mod_rewrite on apache servers.

Sounds like your migrating a flat html site to Kirby? As @bvdputte suggests, I think you just need to 301 redirect them from .htaccess