Yes. I updated to ios 14, and downloaded the other updates released since, and my iphone will absolutely not work on wifi. all my other devices work fine on our home wifi but my phone will show great connection and then barely work at all. Not able to stream or load any images on apps, Instagram constantly says I have no internet connection, etc. Speedtest on my other devices shows 101mbps download and 84 mbps upload, but my iphone won't even connect to speedtest on wifi. They better get this issue fixed soon, I have wifi specifically since my cellular data has a weak signal in my area and I can't keep relying on it for doing everything on my phone.