Despite the hype, true "portable" repacks for Overwatch are not a widespread or viable reality. However, tinkerers have created some interesting alternatives:
: The game updates frequently. A static "repack" would be outdated almost immediately, preventing it from syncing with the current game version. Official Alternatives overwatch repack portable
None of that is true for any repack or cracked portable. Despite the hype, true "portable" repacks for Overwatch