I get that. To counter it I usually try to have at least one public repo on my Forgejo instance and link to that on my resume/LinkedIn. It helps that I'm angling for security/infra positions so the self-hosting aspect actually helps but even without that I would imagine it signals something. Maybe not ideal for the most mainstream jobs (whatever that even means...), but I suspect some people will be intrigued by the initiative.

Edit: to the "do you even lift bro", the response becomes "yeah man, I've built my own gym - oh, you go to Planet Fitness? Good luck."