Overall, OnePlus 9RT 5G is bit pricey. So if you wanted powerful smartphone for gaming then yes, its worth buying otherwise, its better to look at Galaxy S20 FE 5G.
As I have said, the only down side is camera other then that, OnePlus 9RT 5G is good option.
Again, if you're confused then do read my OnePlus 9RT 5G review and then decide, whether you wanted to buy or not?