Thank you for writing this so that I know I’m not alone. I’ve seen so many people act like it’s no big deal to switch tech stacks that I thought I’d try it myself. It has been a humbling experience to the point I often ponder about going back.
Glad it helped! I suspect that most people who don't think it's a big deal haven't done it for real and don't really know what it's like to do it in a professional environment. The pitfalls are many, not least of which is that you'll find yourself in the odd position of knowing a lot and being unable to express it in actual code. It's like having a stroke.