Brand New MacBook Pro 16 M3 Pro Chip having issues with loading internet pages.

I have a Brand New MacBook Pro 16 inch M3 Pro Chip that constantly has issues loading internet pages. It will work for a couple of minutes, then web pages will not load at all or take 5 minutes or longer to load. My speed is 600 for wifi speed and my 2 other MacBook Pro's that are 12 years old and 4 of our year old iPhones we use do not have any issues at all. Our Roku and Amazon tv boxes have no issues either. I can't believe that so many people have noted this same issue and Apple still sells this computer without fixing it. It really disappoints me and makes me look at Apple differently. I spent a lot of money, $2,500 on this computer, and to have it not work, not even close to as well as my 12 year old MacBook Pro, is so frustrating.