If your RSS feeder doesn’t allow you to filter out keywords (looking at Reeder on Devices), this service allows you to exclude content.
I personally use it to remove ads, sponsored articles and articles about Trump/Elon. For podcasts, I used to remove both sponsored podcasts and episodes featuring the word trump or Elon.
If you find the service useful, the creator has a BuyMeACoffee Page here: https://www.buymeacoffee.com/siftrss
On Apple devices, it will appear as the Apple Logo: You can have it change a term to it with the following link: https://www.macrumors.com/how-to/type-apple-logo-mac-iphone-ipad/