reproduced by Patric Massing
Alt-O not working
Alt-R not working
What I found nowadays is that shortcuts are highly dependent on browser.
I recently migrated from brave to firefox (because some unpleasant news about brave) and many shortcuts don't work in firefox.
Samely, some recent versions of chrom* seems to have made some shortcuts useless.
We have discussed this previously - it's not easy to develop, but the best approach would be to make shortcuts configurable, as that's the actual goal of - I'll close this ticket in favour of that one.