Hello SG14,
I would like to bring to the group's attention that the next meeting of
LEWG will focus on the topic of error handling (and exceptions in
particular) in std::execution.
The meeting will take place on 2022-02-01, 8:00 to 9:30 Pacific.

Latest draft of P23000:
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2022/p2300r4.html

Best regards,
Inbal Levi