I’d say mainly privacy concerns. Everything you type is sent to Grammarly servers. I’m not sure what is done with that data.

Wow thank you. I had no idea this was a thing!

Decentraleyes serves popular resources locally, reducing reliance on external content delivery networks and enhancing privacy; however, LocalCDN offers a more extensive list of supported libraries, provides additional privacy features, and is actively maintained, making it a better choice for comprehensive protection.

Ublock origin has additional filters that block these. Check out the settings.

Wonder what steam deck support will look like.