I used to think it's just "aim and shoot" with guns.

That's typical, and expected. You don't know what you don't know...and there's good reason for that - You're not an experienced gun guy.

The Taurus TX22 grip (frame) is polymer, so one can use a soldering iron to melt little dots (stippling) into it which gives the grip more texture and grip.

Your process of research is always going to help you get the right tool for the job, or know when no to purchase something. It's a better process than impulse-buying which often brings buyers remorse.