Personally I'd use it to obscure Bitcoin/banking or other sensitive apps while travelling.
It's similar to the solution nostr:nprofile1qqs0ye3x49qcnw295rcpg6ckcnu2dnknrv6esjzr87mrqmuddmkrvcgppemhxue69uhkummn9ekx7mp0qy2hwumn8ghj7un9d3shjtnyv9kh2uewd9hj7qg5waehxw309a6xzmtz0yhx66n90qhx6ef0w4mmwr is suggesting, but it doest require a while new user profile to be created - almost like a lighter version of their suggestion.