No, I've never used aversion tactics either (well, apart from a stern "NO!!" , "Uh-uh!" which are technically aversive in the +R only world)
Same as you, re the odd bit of Brie/camembert. But I cannot (and should not) use that for training given the amount you need to use on training repetitions! The vet would bollok me - especially since she has heavy floppy yeast prone ears.
I do feel a bit lost at times with the training advice out there, because everyone's "help" relies on the dog being food or toy motivated. A lot of people just don't get what it's like to have a dog who once outside the house honestly doesn't give a shiny shit about anything you could possibly have in your pockets.
She will often do the behaviour asked, and if we are outside the house she turns her nose up at the reward I offer. And then I'd be there thinking, "ok but the science says I need to reward you in increasingly distracting environments for the repetitions to form your habits otherwise i am not training you and a really bad owner 😭"
but when you're standing there trying to reward a dog for having done the thing, where she has sniffed the treat (that she happily accepted indoors I might add) and then just stands there not taking it, I wonder what am I to do.
It's not that she is badly behaved, she just sashays along and mostly ignores people and dogs, but I do feel I'm relying on her good nature and not extensive training. And in the dog world, that can sometimes make you feel like the world's shittiest owner.
I've kind of accepted now that I cannot train her to perform obedience and I will have the rely on her character and interruptors.