Thanks for posting this, but unfortunately we don’t know anything beyond what’s written and you’re not the original author. Some of the items we’re already well aware of (e.g., some long stack traces should get better in 1.6 with #36107), others are an example of mismatched expectations, and others would be nice to have reproducers of or more details. If you were the original author, I’d split this into multiple concrete threads where we could try to figure out, for example, where @avx is being crashy or see if the particular examples of long stack traces will be well-addressed in 1.6 or not, but without the original author we’re pretty much stuck.
Otherwise, this fits within the new “feedback splitting” policy, so I’ll close this instead of just spinning wheels here.