When I first wrote about GrapheneOS I had grand designs around using multiple user profiles to isolate the different parts of my life: personal, work, apps that were trying to steal my attention, etc. I gave up on that pretty quickly though. Partially because juggle multiple users was a little rough, but mostly because I just use my phone differently now. After limiting what I do with my phone I don't need those different profiles.
Currently being implemented
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-ef # equivalent to -e -f
Google has made similar moves. Last year it pledged $15 million and formed a partnership with the Electrical Training Alliance (ETA) to expand the pipeline of electrical workers.