This is a terrible decision. An RTX 3060 is only 7-10fps faster than a GTX 1080 and maybe a bit more. You won't be running ray tracing on a 3060 with most titles because of low performance unless you pair it with DLSS on "quality" setting which is honestly still not that good looking. Ray tracing is still a gimic right now and should honestly be ignored by most people who don't have at least a 3060 TI/2080 or RX 6800 (maybe 6700 XT if it's fast enough). Your 2060 MQ is slower than a GTX 1070, so even that is not a better option than just keeping your GTX 1080 to play games or just mine cryptocoin to pay for a new 3060.
It's a great decision, because a 3060 at retail means I get paid $150+ to upgrade to a slightly faster and more efficient card, with DLSS and Nvidia's updated codecs. But, with that kind of luck I would be getting a 3060 Ti, 3070, or RX 6700 XT instead . Worst case I have to wait until I can buy buy an RTX 3060 at ~$475, then it's just a free upgrade. People are not going to keep panic-buying GPUs forever, so I might as well sell before this card drops back down to ~$200 where it belongs.
I don't really care that my 2060MQ is a little worse than a GTX 1070. Most everything is playable and it only needs to handle "I absolutely can only play it on PC" games for a couple months. The only downside I see there, is that games usually hitch until I set the dumb fan management mode to "Turbo 100% fans even at Idle". I think the ROG fan management software is limiting power to the CPU instead of letting windows handle it.
I've tried mining crypto before. It was a huge hassle and absolutely not worth the effort. It took a literal month just to set up an account with a shady website that could hypothetically turn the imaginary computer number into real money, minus a giant fee and taxes. I would rather just let somebody else pay me to get scammed by Elon Musk's/China's money laundering scheme, or whatever. I would rather not spend my time worrying how much longer it will be until some researcher or government with a Quantum computer decides they want to steal $600 Billion - and makes every wallet worthless.