But as a signifier it’s actually the opposite.
Someone that knows bash in 2023 is likely a decent well rounded dev. Python in 2023 doesn’t even imply the ability to program.
Ouch. I know the feeling. Is your thinking: If they can program in Bash, they have learned how to program in many other languages, and Bash is their glue to make stuff "schedulable" via crontab, (dreaded) AutoSys, k8s, etc.? For me, learning how to program /OK/ in Bash has been a very difficult journey -- as difficult as Perl and Python, due to insanely weak typing. You are always fighting unknowns when you receive some function parameters.
Related: When I search for help on a Python foundation library or built-in funciton, my Google search results are overwhelmed by "learn-to-program"-type of websites. I guess it makes sense: During the gold rush, don't dig for gold, rather sell shovels!
Lots of schools / boot camps / etc churning out people who "know python" but are not "python devs". Think - data scientists / data analysts / stats / business analysts / etc.. who need to monkey around in some data, and are like slightly more than an Excel power user.
On the other hand, no one is doing the same for Bash.
You are using Bash because you know how to program something else and need to schedule it / wrap it in a shell script / etc. The fact that someone even knows Bash exists is a filter. Having an idea of where you might need to use it, a second filter. And having successfully done so, a third filter.