@Jay_16,
This: "Im now running a 3060 and a 2060 on my 700w power supply both overclocked getting 75MH. no issues at all. "
That can certainly be so.
However, in my mind the matter is not that the GPU's will or will not run/perform/mine with any given PSU wattage or rating/efficiency.
Especially when those values were likely "established" under ideal conditions and possibly statistically skewed one way or another....
The question is for
how long will it run? Especially with overclocking and numerous other system demands for power.
Mining needs power. Power generates heat. Heat destroys electronics.
Hence the need for more cooling which in turn needs even more power.
And details do matter....
@Rogue Leader summed it up nicely in his post (#26).
For me the mining risks to the GPU(s) or overall system far exceed the little chance of profit to be made.
Especially with your competition being entities with vast mining rigs. (Google "bit-mining rigs images".)
If someone wishes to mine then the important thing is that they understand risks involved: short-term and long term.
Right now, the GPU market being as it is, I would not want to have to go looking for a new GPU.
Keep a very close eye on your system.