Is java really worth it to stick with, feeling like the learning curve just stops or becomes stagnant after a point

I am a backend junior dev. Its been a fews years for me working in java, as much overwhelmed I am with the tech stack, I want to know is it good enough for me to stick with it? I feel like there are advancements in java but performances on other languages are way better also learning curve is also less as compared with other languages like golang and python. I am deciding to switch soon and want to know if I should aim for java specific companies or change my tech stack.

Ik that in long term tech stacks wont matter but I am also aiming for doing masters in distributed systems, so preferably looking for exploring new tech stacks with better optimisations with distributed systems.