Fiber internet

Can anyone give me a short run-down of what is involved in the installation of AT&T fiber internet and how long it will take? I’m thinking about switching from my current DSL through Earthlink to AT&T fiber internet. Our landline is horrible, much static or goes down completely every time it rains a lot even though they supposedly fixed the line a couple of times. Was out from Wednesday evening until mid-day today. Current DSL only works about 1/2 the time, disconnects multiple times a day or even during one session, often when trying to load a page. Cuts off when my husband makes or receives a landline phone call even though I have DSL filters on the phones. Took several hours just to post this question due to being cut off constantly. Been putting off switching because of COVID and I don’t know how much personal contact is required for tech person to install, but it looks like COVID is not going away anytime soon. I’m hoping they only need to come just inside the back door (current network interface is just outside back door) to install the signal sender and I can install the receiver modem/router connected to Mac myself. Am I correct?