Through my company I have the opportunity to get a graduate degree (or another degree idk) for free. Is it worth the time investment and if so what would be best long term?

I’m a mid level dev with about 5 years profesh, 15 years (!) messing with WP as a hobbyist. I have almost no skills outside of WP, I know that doesn’t have a lot of prestige in the tech world but I don’t give a shit, I love the project and am passionate about it. Because I focused on Gutenberg early, I have niche skills that are very hard to replace, I get paid well and am happy.

However, I don’t know what things will look like in 20 years with changing technologies… should I get a CS degree or something of that nature? I really want to get something useless and fun, like art-related, to be honest. Random people are always telling me web developers will eventually be obsolete and we’ll all have to learn to be AI programmers but that just sounds soooooooo boring.