Is it ever worth moving to a higher COL area aka Sydney for higher income and better opportunity?

Obviously this would depend on the actual figures but I'm seeking anecdotes from people who have made a similar move and whether it has worked out for them.

Context:
-20M, living in Lower Hunter area where median house price is around 750-800k
-Entering final year of Bachelor of Commerce
-Recently started working in finance (however making almost bare minimum due to still studying despite pro rata)

I've noticed a lot of the grad roles in Sydney have decent starting salaries, with significant room to increase over the years, which may help me in the long term. However, if I stay where I am now, I believe I could snap up an owner-occupier house in 2027 which puts me ahead of the majority of the population but I may not get strong opportunities and income at least in the short term.