Yeah, nah. When I take my learnings home with me, it fails every time.
Usually, the scale of work necessary to maintain an enterprise-grade system rapidly outgrows the time I can reasonably allocate to it. In other cases, I lose interest because it's boring corporate crap.
I don't known how all of you "homelab" people put up with it. I have enough Linux boxes at work that demand too much care and feeding.
The author has a good point but it really isn't a two-way street. The hobby stuff can feed into your career, but letting it go the other way is usually either counterproductive, or bad for your mental health.
Don't tinker in your shed because you think it'll advance your career. You'll be disappointed. Sorry for the spoiler.
Tinker in your shed because it makes you happy, and brings joy and meaning to your life. You'll be more productive and, in my experience, you'll actually be more likely to learn something useful for work.