i think apps that support mixed networks are even better like Samiz from nostr:nprofile1qyv8wumn8ghj76twvfhhstnjv4kxz7tn9ekxzmny9uq35amnwvaz7tms09exzmtfvshxv6tpw34xze3wvdhk6tcqyqalp33lewf5vdq847t6te0wvnags0gs0mu72kz8938tn24wlfze6luf5tq . I think nostr is actually a very good unlock for building network agnostic apps because its just pushing signed json between relays so the actual connectivity is fairly irrelevant for nostr-native applications
this way ppl can use their daily driver also in scenarios where primary mode (internet) of communications is interrupted vs ppl having to have installed and configured apps beforehand (or needing to figure out how to install things offline and figure them out when you most need them)