S23 Ultra's WiFi Issue is real (NEED HELP)

Hi everyone,
I’ve been using the S23U for the last 1.5 years, and my experience with the Wi-Fi has been really bad. No matter what type of Wi-Fi it is (6, 6E, etc.), the speed is insanely slow, and apps like YouTube, Instagram, or even Snapchat can’t load content until I switch to mobile data. I’ve searched online but couldn’t find any solutions. I have a 60GB data plan, but I never used half of it when I was using my Pixel 2XL. However, since switching to this phone, I reach the 60GB mark before the end of the month because the Wi-Fi isn't working properly, which is quite concerning. All my other devices are working perfectly, but this phone has been causing a lot of issues. I don’t know if there’s any solution to this, and I can’t afford to buy a new phone right now. This is the first time I’m using a Samsung, and although I’m satisfied with many things, not being able to access the internet through Wi-Fi is frustrating. If anyone can help me find a solution, it would mean the world to me; otherwise, I’ll have to start saving money for a new phone, and Samsung may not be it if this issue exists in their new phones as well.