Anyone facing app crashing frequently after updating to Sequoia 15.1

I don’t think so. It’s a new piece of code Apple added, and I think it will be used even when writing tools doesn’t appear. But I suppose you could try turning it off.

We haven’t set a release date yet. We are in the process of beta testing it.

If you want to join the beta, post a comment in this thread: Can I join the Agenda Beta program?