Is .net worth it

I joined as a fresher last year in August and I'm working on the .net core 6 space. Major work in my team is backend .net, kendo ui, and complex hangfire based scheduling processes. Whenever I look for opportunities outside or even within my company, i see everything is for java, react , angular. I think by working here I'll not be able to switch in other domain and forever get stuck in the .net space. There are not a lot of jobs in this space