I’ve seen a lot of stupid when it comes to table saw use, typically people get lucky and never give it a second thought. Once upon a time I had a boss that liked to use the rip fence as a length stop to the right of the blade with the miter gauge to the left of the blade. When I yelled at him and told him not to do that, he reminded me that I worked for him. Several times that day, offcuts would get bound up and go flying. He continued on unfazed.
Freehand cutting on a table saw is another thing that drives me nuts - particularly when you see it performed on well-known national TV shows. Having the blade raised an inch or more above the stock is another thing that makes me cringe.
Obviously, never do any of the above and if you don’t know why, you should never turn your table saw on.
I had the benefit of having expert instruction from my shop teachers in high school and beyond. Sadly, few schools offer this in our modern age.
Regarding the table saw, find a new or used copy of “Table Saw Techniques” by the late Roger Cliffe and dive in. I had the good fortune of having him as an instructor back in the 70’s while he was working on the book.
Yes, table saws, jointers and any number of power tools can cause grave injuries - no question. You have to know where to stand and where your hands should be at all times. You need to be aware of what you are cutting and know where the stock is going and how it should behave. Have a plan in your head for what to do when things go wrong. Your head has to be in the game. If you are distracted, in a hurry, tired or otherwise impaired - turn the lights off in your shop and come back when you can focus.
In 50+ years of woodworking (10 professionally) I still have all my fingers. One swollen and bruised hand from a nasty kickback (because I was stupid and in a rush).
Oddly, my worst injury was with a chisel. A VERY sharp chisel that I drove into my left index finger when I was in a rush and failed to secure my workpiece. Sure, I can hold it with my left hand…NOT. At least the bone stopped the forward motion of the chisel. Same old story - in a rush, over-tired. No mental plan for what the path of the chisel would be if something went wrong. Although my left index finger has a bit of a lean to the right, I have more or less full function decades later. If my carelessness occurred while using a table saw, most of my finger would be gone.