I purchased a Galaxy S20 (not plus, not ultra) unlocked about a month ago. For the past several days, I have been experiencing issues with the wifi connection cutting out after several minutes, and I have to turn wifi off and back on again. I have tried restarting the phone and internet (which is Google fiber w/ Google wifi) and I have reset the network settings on the phone. I also changed the mac address from randomized to phone after seeing that as a solution elsewhere, but it is still doing the same thing. I had no issues with my S8, and I was so far happy with this phone.
wifi can't penetrate through walls as well and or the wifi might be weak
Unfortunately, I doubt that is the issue because we have had Google wifi longer than I have had this phone. All other devices are working fine on our wifi.
I have dropped it a couple times, but nothing too severe. My S8 didn't have any issues after all of these years of being dropped, until it cracked about a month ago.