Disappointing phones

Since 2019, my phone has been a OnePlus 5T running LineageOS, and I've loved it.Unfortunately, it uses 3G for calls, and all New Zealand networks plan to turn off their 3G network in early 2026. I would still be able to use this phone for taking photos, playing games, and browsing the web on 4G data, but in theory I wouldn't be able to make or receive calls, because it lacks the somewhat recent VoLTE feature. I only need to do phone calls a little bit, but I do have to do them. So it seems li...