It’s supposed to be in the game but in the main menu instead of the pause menu. They’ve had main menu popups for dlc for years, not sure if I’ve seen ads for other games before.

The bot compresses an article about how AI are good at compression… how deep does this go?

I cannot vouch for it, but this is their explanation: https://github.com/dhowe/AdNauseam/wiki/FAQ#does-adnauseams-clicking-put-me-at-risk-for-malicious-ads-or-ransomware

Does AdNauseam’s clicking put me at risk for malicious Ads or ransomware?

Absolutely not. AdNauseam simulates clicks on Ads by issuing an AJAX request to the adserver in a background process. This request is made without opening any additional windows or pages on your computer. The text-only request is safely discarded by AdNauseam before it has a chance to execute in the browser (no DOM is constructed and no code is ever allowed to run). Further, all cookies from AdNauseam’s visits are automatically blocked before they reach the browser’s local storage.