my opinion/theory: I think most people dont realize this but cooking canned food to boiling point will more than kill botulinum toxin (botox). even if it doesnt kill the spores themselves according to the WHO which implies that even if your canned food was infested with botulism if you cooked it at boiling point and ensured the food was thin enough for the heat to penetrate, and then eat it quickly of course, its likelihood of danger is extremely extremely low especially if you added something acidic to the can before canning it, but this is an in case of emergency protocol. i would not do it that way if it was a normal situation. but this is only right before you eat it, never do that and then store it for any amount of time or youll have to repeat the whole process.
do your own research first though this is just my personal opinion based on what ive read from WHO