It looks like monitor manufacturers can download bloatware without consent that will serve you pop-up ads
Monitor manufacturers like LG and Dell are reportedly installing bloatware, including antivirus trial offers, onto users' PCs without consent, often via Windows updates. This software prompts users with pop-up ads and subscription offers, leading to user complaints and concerns about potential malware. Users are advised to disable automatic application downloads and, in some cases, the Windows Store to prevent these installations.
PC Gamer
Original source
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