Same for me but I went ahead and did a factory restore anyway.
Were you having issues or was it just for the heck of it? Did you see any improvement?
My phone is working fine so I'm trying to talk myself out of it... ??????
I had the Android 7.1.1 beta. I got the Android 7.1.1 OTA last night. I can see no difference in the two except the beta had a splash screen that said it was the beta and you had to click the "OK" each time you booted the phone.
I would seriously suggest you take a deep breath, wait for the 7.1.1 OTA as it will come and you'll get it before most cellphone users in the world.
Just for the heck of it but after six months of fiddling with the phone I find it nice to start over. Now I can mess up the settings from scratch.