james singer b4f8cd9513 Linux: Fix IsVanilla check by implementing EnumerateLauncherEngineInstallations for Linux ...

- Also add -BuildId flag to allow released builds to be registered as "launcher" builds.
- This gets us telemetry and the ability to open projects made on the Mac and Windows builds without being prompted to open a copy

#jira UE-195467
#rb zack.neyland, ryan.hummer


#p4v-cherrypick 27716361

[CL 27884074 by james singer in 5.3 branch]

2023-09-14 12:55:48 -04:00

97 KiB

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