One URL instead of three store apps
OS-specific unlock utilities are how people end up with adware. A bookmark is enough. Large archives still take RAM; 100 MB+ is Premium so we do not pretend a Chromebook tab is infinite.
Locked-down work laptops
If the browser is allowed, this path is allowed from a tooling standpoint. Your data policy still applies.
No transfer wait
Cloud unlockers upload 80 MB first. Local decode uses your CPU and skips that hop.
Still not a cracker
Browser-based does not magically recover unknown keys.