I moved from primarily ASP.Net Core backends, which is a hell of a great backend framework btw, to NestJS. Not my choice. I do what the people who sign my paychecks ask for.
I cannot begin to fathom why anyone would willingly choose JavaScript for backend. TypeScript helps a lot but there are still so many drawbacks and poor design decisions that make the developer experience incredibly frustrating. Features that are standard in ASP.Net Core, Django, or other common backend frameworks just don't exist.
Also, don't get me started on GraphQL. Sure, it has performance advantages for websites of a certain size and scale. But 99% of the websites out there don't have the challenges that Facebook has. The added complexity and development cost over REST is just not worth it.