On the microblogging side of the fedi, "fedihire" and "jobalert" hashtags seem to be frequently used for job postings, and "getfedihired" and "jobsearch" for those posting that they are looking.
neblem
I've never heard if it either but I too am not on TikTok and I use ad-blockers nearly everywhere.
OpenStreetMap's platform is the only real way to compete against Google and Apple and it's why Microsoft even though it has Bing Maps, has licenced to them resources like satellite imagery for mapping. It's awesome in bigger population areas but there's still a lot to map in rural places outside the EU.
Review is harder. Right now the leading open platform afaik is Open Reviews (aka Mangrove Reviews) which has tie-ins to OSM projects like MapComplete. OsmAnd and OrganicMaps have open tickets to hook into that ecosystem. You're right about the userbase problem though, I think it (or a successor) needs AP federation to really take off. That being said there's several active non-Google nonfree alternatives like Yelp and TripAdvisor as well as niche sites for things like camping, parks, and schools.
Man I feel old, back in my day we weren't allowed to use anything more powerful than a TI83 on most exams and the answers were on scantrons or paper due to fears of using the internet to cheat. These days with GPT I'm surprised that's not even more of a concern.
Open source software might not directly be used in the workplace but if someone can't adapt from LibreOffice to MS Office they won't be able to adapt to MS Office updates either. It's been decades since productivity software had significantly different feature sets for most users. That weird legacy Excel formula the Finance Department uses will need training no matter how many years of Office experience a new hire has.
Those still there don't know better (lots of millenials, and older, folks and those barely online), like Elon's changes, or are there passively (syndicating other feeds).
Not single for long, but they do exist. Also far more people are open to experiencing Linux and Star Trek than have experienced either, so you might want to look for more root indicators like curiosity, enjoying tinkering / learning, likes fiction, etc.
What are they defining as necessities?
The episode wrapped up so many things too. Such a great way to end things before the long pause.
Ready Player One