My mindset totally changed few years ago when I started being honest with myself and with others.
It's true, I'm in that meme... I don't know much about Windows anymore. Initially I admit I was ashamed about it because I imagined that I'd be judged for it.
What I did though, instead of trying to be better... was to be honest about it :
- yes, it's true, I don't know Windows or MacOS as well I know Linux... but there is a reason WHY. Explain why, namely the consequence for my freedom, and theirs, totally changed the discussion.
One day I even told my friendly neighbors : "Look I could fix your Windows computer but... I'm a professional, and I don't know Windows so much. So I would have to look solutions up and that will take time while going against my principle, so I would have to charge you for it, and it's not cheap. Instead, if you switch to Linux I'll help you, and for free." Guess what, they not only tried but they didn't even need my help! They even, back then so few years ago, install WiFi driver via the command line on their own.
So... yes, be in that picture, sure, just don't be ashamed about it if you believe it's for good reason. Do not be afraid of explaining others too and who knows, they might not only understand but even want to tag alone on this constant adventure for collective empowerment!
Attaching less weight to the ego is the best thing that can happen to boost learning :D
It hurts confidence initially, especially as you land on your ass, but only until you learn something new and empowering, then get excited again! It's one of the most enjoyable rollercoaster IMHO.