I just went to the documentation there: https://wicg.github.io/native-file-system/ https://wicg.github.io/native-file-system/ I get that from your comment you

I just went to the documentation there: https://wicg.github.io/native-file-system/ https://wicg.github.io/native-file-system/ I get that from your comment you agree that this is enough to mitigate the risk they themselves bring up: >Another risk factor is that of ransomware attacks. The limitations described above regarding blocking access to certain sensitive directories helps limit the damage such an attack can do. Additionally user agents can grant write access to files at whatever granularity they deem appropriate.