Amen to this. In a similar vein, in a heavily resourced constrained environment, the rest of the team may be really competent but be struggling to meet their own deadlines so just don't have the mental bandwidth or time to provide any feedback.

I've had this issue at a few jobs in the past, and I know I've come off as the lone developer who ventured too far... but at every step along the way I stopped, sent in a PR, scheduled a meeting, etc but got virtually no engagement. And I was still getting pressure from stakeholders to deliver, so had to keep moving :-/

I think OP brings up an interesting problem, but I don't think the solution is often as easy as sending in earlier PRs. It might actually be a structural or cultural problem in the organization.