This is on you, no one asks you to have to follow these things. Each company has a specific setup that would be what you are required to know. Most companies us

This is on you, no one asks you to have to follow these things. Each company has a specific setup that would be what you are required to know. Most companies use a variant of the same stack (webpack thesedays, never worked anywhere that uses vite), so no risk of non-transferable skill either. If you buy a new phone every year then you'll waste money and after 10y your phone is no better than someone who only buys once every 10y.