@Sparkwave Well, the good news is that all the 20-year-old techniques for progressive enhancement still work fine today! You can pick up basically any article on the topic, written at any time, and learn how to approach it.
The bad news is that with the deterioration of search engines, it's become harder and harder to actually find that sort of article anymore 😐
Either way it's pretty much just a culture/community problem. If you personally care about getting it right, then it's entirely possible to do so today! I still build things with progressive enhancement by default today.