Not sure, I think there is a lot of research being done here.
Actually, browser use works quite well with vision turned off, it just sometimes gets stuck at some trivial vision tasks. The interesting thing is that screenshot approach is often cheaper than cleaned up html, because some websites have HUGE action spaces.
We looked at some papers (like ferret ui) but i think we can do much better on html tasks. Also, there is a lot of space to improve the current pipeline.