Thanks, Cliff! I admire your patience and concern to support / help / share knowledge with anyone on Librepilot forum, no matter how sane or not so are the questions asked. I do appreciate this!
Btw, today I see the link!?
I was logged in Atlassian yesterday... And the link wasn't visible then. I hadn't changed anything meanwhile, and I do not run any blockers in my browsers.
Anyway, now I see the "Assign to me" links in unassigned Jira issues. And, apparently, I've got a support from f5soh, thanks! Now the LP-605 is tagged as assigned to me.
I'll follow your advice to ask in the devs chat for confirmation before generating the pull request.