If it's a good unit, no worries. Recommended minimums is 550w for a 3060 and 500w for a 2060S, and a 65w Ryzen just means extra headroom.
But that said, as said, that depends on the psu.
Many cheap model psus will state proudly 500w or 550w capacity, but take a look inside and it's quite obvious they crash at just over 50% loads, in reality making them 300/350w psus at best.
A quality psu is essential, not just to actually get the wattage outputs claimed, but the protections, ripple control (stability!), thermal qualifications etc.
View: https://m.youtube.com/watch?v=f6snWfd1v7M