Antarcticanon here
Yeah, have abbed into lots of crevasses, both for training in rescue techniques and to explore them. They are really cool.
Crevasses are not as scary and unstable as posters here seem to think. Obviously there is a risk of roof collapse, but the main damage a crevasse does is when you fall into it.
http://footlesscrow.blogspot.com/2020/07/crevassesstop-worrying-and-learn-to.html?m=1