“Windows 10 GAC (General Availability Channel) (i.e. Home, Pro) will reach end of support on October 14, 2025. So, if your hardware doesn’t support Windows 11 then you might wanna use Windows 10 IoT Enterprise LTSC 2021 since its supported until Jan 13, 2032” from https://massgrave.dev/windows_ltsc_links
i use F-Droid and Aurora but only Aurora is giving me updates on a very old phone.