Finally got around to installing R4.3 and updating the table for this release
I ran the test using @renehoj 's systemd-binfmt.service trick but it didn’t seem to reduce my boot times (and actually seemed to increase it a tiny bit). Overall R4.3 is slower than R4.2. but still significantly faster than R4.1.
The top post is a wiki post that can be edited by all, and Discourse has added a handy table-editing feature, so please feel free to add your results!