I’m practicing for my driving licence and I’m going to driving school, just out of curiosity though I’ve looking on YouTube how to start and run a car and I’ve seen at least 3 different methods, I dunno which one is the correct. Things like the order when you release a pedal or when you need to press the clutch keep switching…
Wait. This isn’t correct. You need the handbrake engaged to start this process.
You do this on a hill and the car is going to roll backwards and you’ll never get the engine in gear without stalling it.
You are right that if your car isn’t level (especially if you want to move uphill), the process is somewhat more challenging and you need to be careful not to roll down the hill, but I have never been taught to use the handbrake even in those situations and have not ever done it that way (for context, I live in Austria, i.e. I have driven a manual transmission car on mountainous roads many times by now).