When I worked in outdoor
theatre we used a grey-green (faded grass) oil-base porch &
deck enamel which was unfortunately only available in gloss. Sometimes the floor was painted over as needed for a particular show. In hi school, the @#$% floors were oak strip, varnished (@#$%) and the front office had a fit if you ran a
stage screw into them. Real pain in the you-know-what for reflections! In jr hi they were unpainted oak strip (bare wood.) Ditto college and another
community theatre I worked in.
Nobody seems to look at a
stage floor as if it is a factory floor where you
build things (shows.) Do what you need to it for the thing you're building on it now and change it next time.