Help with light fixture replacement; no ground wire (image)
I think I see a ground bundle behind the wire nutted connections with a metal crimp. For many areas the crimp was required in the past.
Move the wires out 1 wire may be longer allowing you to pigtail a new ground   I have cleaned the texture and paint off the ground in the past and crimped a pigtail on because the crimp is usually two close to the end to use a wire nut. But your grounds do look to be there. A metal fixture should have the ground connected a plastic one it doesn’t need the ground.