Luck you on two front:
1-You did not get a fire.
2-You accomplish everything on you list.
When I took this hobby. it quickly became clear to me that the two 20A circuit in the garage will not adequate. In fact I discovered that one of them was also feeding the downstairs bathroom.
So it was popping for no apparent reason when I only had one tool connected until I discovered that my wife was using the hair dryer at the same time.
I called an electrician to install subpanel in the garage since I don’t know anything about the code and wanted it to be done right. He installed the subpanel and I pulled the rest of the circuit.
That also gave me the opportunity to have 220V as well. That was a blessing. Once I bought my cabinet saw I was ready to go electricity wise.
Abbas, Castro Valley, CA