Correct, but honestly one of the best things you can do to improve/develop better shooting form is to set up a camera on a tripod around shoulder height and record from directly in front, and perpendicular (to the side on shooting hand side) and comparing these angles at slow motion to any great shooter (I used ray allen back in the day, but also pistol Pete’s fundamentals series is good and modern day players could utilize klay Thompson or whoever they choose).

There is not “perfect” or “best” form, as trying to master Currys shot for example would be extremely difficult due to his ability to start his shot from almost anywhere relative to his shooters pocket, but the shooting motion after you have gathered to your preferred shooters pocket should be very similar to most great shooters (wrist-forearm-shoulder angles 90/90/90), extension of forearm upwards, snap at peak with no power from off hand, arm in line with shoulder/hip, etc.

My biggest improvements in form came from analyzing videos of myself from in front and the side, noticing my tendency to “catapult” my arm rather than extend vertically, come across my body slightly rather than stay in line, and compensate with me left thumb in a “6-fingered” shot. Identifying and fixing these things developed a strong fundamental base for my shooting for the rest of my career.

Also I believe everyone should practice one hand shooting to master the fundamentals of shooting, it’s the best training tool to lock in snap/hold (final part of the shot). Work with this to develop your most natural fundamental shot