The quality is probably not as good but my father got fairly decent results filming directly with his digital camera the projection of the super8 film on a screen (obviously in the dark).
The added bonus is he would grab the sound of the projector which add a bit to the vintage touch.
This is the good answer. Also to get even better results you can project on a specific small screen using a mirror so you have an even better image. Due to 8mm low quality there is no gain from scanning.
I wonder what the outermost res of 8mm is? It must be pretty low.
I was involved with scanning some 35mm & 70mm Hollywood movie pieces for Universal and pulling 4K from some 35mm wasn't possible. They were saying 4K, but honestly, it was really about 3.5K of real res. I pulled 8K from 70mm, though.
The added bonus is he would grab the sound of the projector which add a bit to the vintage touch.