So Android 14 won't permit installation of apps whose Target SDK is Android 6 or below. Termux has been unable to update its app in the Google Play Store since 2020 because the Play Store demanded Target SDK level of 29 or above, which is Android 10: https://wiki.termux.com/wiki/Termux_Google_Play

Maybe around Android 18, Termux will stop working even if install it with F-Droid.