* DevOps: If people find value in releasing software in an organized manner to avoid breaking websites / "testing in production" and losing a lot of revenue, why do you strongly hate or care at all? You don't have to work on devops.
* Learning new frameworks: Did someone force you to learn every new JS framework released in the past 10 years? React is the main framework people have been using since ~2015-2016, and other frameworks are either not super important (latest CSS framework someone came up with) or worth the cost of learning (Gatsby, Next). Continuous learning is an important skill in all jobs.
* "having the fundamental stuff I learned early on - objects are good, always separate presentation from logic - being totally flipped around": People realized that this is not the right approach for building web frontends. These best practices are not meant to be seen as dogma/ideology, they adapt to people's experience (and usually will only apply in some contexts)
So I think you can just relax, enjoy the parts you love, and be more open to things changing around you.