You can personalize your opt-in/opt-out settings and notifications to the level of control you want.
On the "Podcasts" page where lists your podcast feed, scroll down the page and you will see the Ads Settings.
You can set whether or not to receive notifications when your podcast is selected.
Manage Ad Categories to Auto Opt-Out
You can manage ad categories in Ads Settings, to decide if you would like to opt out or opt in ads of specific categories.
Some potentially sensitive ad categories are listed for you. Check the categories to opt in, enabling the categories of ads on your podcast; Uncheck the categories to opt out, disabling the categories of ads on your podcast.
Ads will automatically run on your podcast, with the exception of ads in the categories you’re opted out of.
*Please note that the Ads Settings will be applied to all your podcast channels.