I am getting periodic popups saying my Mac is infected and if you click on the notification McAFee displays with an option to scan. Why didn't BitDefender cash this and shows to malware or viruses doing a complete scan?
Check if below steps helps you in any way.
Reset your browsers:
Google Chrome: https://support.google.com/chrome/answer/3296214?hl=en
Mozilla Firefox: https://support.mozilla.org/en-US/kb/refresh-firefox-reset-add-ons-and-settings
Microsoft Edge: https://malwaretips.com/blogs/reset-microsoft-edge/
Additionally, have a look at solution provided by McAfee themselves in below stated link
OMEN Laptop 15-en1037AX (Bitdefender Total Security) & Samsung Galaxy S22 Ultra (Bitdefender Mobile Security)