i've had the same 3'x6' workbench for almost 40 years, it was my dad's workbench before that
it's had a lot of projects on top of it: wood (obviously), metal, electrical, paint, fiberglass, automotive, etc...
top is 2&6 T&G cedar. i screw jigs/fixtures/stops to it, probably 1000+ screw holes over the years
it's no worse for wear than when i got it, i keep cardboard handy for when it needs protection from gooey stuff
unless this workbench is in your living room, i think your making more work than needed