I'm a bit late in the discussion but I've been in the industry a long time and watched languages come and go. I now rely on Stack Overflow's annual survey which shows some surprising results. https://survey.stackoverflow.co/2022/ Javascript still tops the most popular list and SQL and C# are still up there. Rust is the most loved and least dreaded but ranks at only 9.32% on the most popular list. There are other anomalies as well. As long as the technologies I am using are high up in the most popular list I'm quite relaxed about job prospects. It's not us developers that decide on the languages and platforms it's management and they are interested in a whole range of other issues like continuity support cost etc. I wouldn't pay much attention to the "highest paying" list it can be skewed by unusual temporary demand and small samples and can change very quickly. Microsoft always cops a hostile beating but the MS ecosystem still looks pretty healthy. I've also recently noticed a few bespoke business systems being ported from Heroku/aws to Azure due to uptime reliability issues.
There are some things that can only be seen by the mind - JS