Hi @SinbadtheCatfish see the various blocking features available from samsung here and ensure Pop ups Blocked on Samsung Browser - Settings- Sites and Downloads- Block pop Ups. In chrome it is Site Settings- pop Up and Redirects . You may also be able to pinpoint the App responsible.
See more information here https://www.samsung.com/au/support/mobile-devices/ads-found-on-galaxy-device
I do not work for Samsung or make Samsung Products but provide independent advice and valuable contributions.
My Device- S21 Ultra 5G ( SM-998B/DS ) CSC= BTU , 12GB/256GB
One Ui 4.0,Android 12 Official Version.