The development of UAD has been stopped/paused. The fork Universal Android Debloater Next Generation continues it

Perhaps you should add this criterion to the start post? Otherwise ten more people will recommend GrapheneOS…

Another alternative is iodeOS. They also sell pre-installed Fairphones and support a few more devices (not as many as eOS) https://iode.tech/de/installation-iodeos/#1611161940311-4fb3b2cf-4d60|sc-tabs-1700424213961

Here you can filter the search for Custom ROMs by release year. A few current models are already available: https://www.sustaphones.com/ beside Pixels i.e. Xiaomi, 2023, redwood X5 Pro 5G, Teracube 2e, 2022, emerald, Motorola g32, g42, g52, …

I would recommend DivestOS. If you need MicroG, there is also iodeOS. I would recommend this over /e/OS because system apps can also be selected or uninstalled.