Changing template for single job

Hi there! This might have a simple answer, but it has me stumped for some reason! I have a custom page template created and applied to the main job listings page since we have some additional content we want to display there, but I do not want to use that same template for the single job listing page or the application page – I really just want those pages to fall back to the standard full-width page template (or something more similar to that). What’s the best way to go about that? I’ve tried a few different things, including trying to follow the template hierarchy naming conventions, but nothing seems to work. I’m sure there’s something small I’m overlooking! Thanks in advance for your help!