Weird Windows Security Notification

[FireLegend]

Ever since I installed my new ssd and a fresh Windows 11 install, I'm always having this notification when booting into Windows. Basically, it prompts me saying: Microsoft Defender Antivirus is periodically scanning your device. Which in my case sounds fine. But follows up with, You're also using another antivirus programme for active protection. Funnily enough I'm not, but could Microsoft's PC Manager be interfering with this? Obviously, it's an open beta and you would expect stuff like this but I don't know when this weird notification started popping up. I quite like it, as it does actually lower my ram's utilisation, however, I would rather get rid of it if this annoying notification went away. Though I don't know what's making it happen. Any suggestions?