Closing of 3g network and HD voice requirements for 2022

Good Morning, I have an Alcatel Verso. I barely get 4g speeds, it says its LTE, yet it is always painfully slow. I understand its a cheap budget phone, but that doesn’t mean I’m suppose to get 3g speeds. Along with that I’ve dug into reviews, along with other websites and found that it does not support HD Voice. Will I get a discount for upgrading, not just the $100 off. Im going to be frank, I see other carriers that offer better deals for people who trade up and stay on their service. I’ve been a AT&T customer for 6 years, 5 of that with Cricket, which I wasn’t able to get a deal because I was switching from the parent company.