i am really glad to hear you are looking into other ways, there are some amazing trainers on this forum - and this thread - who I have learnt loads from so I am sure you will have some great discussions

imo in the subject of punishments proofing behaviours better

Kind of I sort of agree - but I dont like the reason why

Punishments supress behaviours
In the main joe public wants their dog NOT to do things
Not pull on the lead, not to jump up, not to bark
so punishing makes a dog offer less things and look like a better dog

Rewarding makes behaviours more likely, makes dogs smarter and try new things
But that can be a challange with a smart dog 'do you mean sit, or sit like this? or is it better if I sit like this?'

Its far more fun but means you have to out think your dog