BitMaster_1980: I launched it under Wine (which appears to work fine, btw) and did not see any launcher.
Everything I'm reading suggests the telemetry may be tied to a launcher program that is present on the steam version of the game when it is run.
Maybe GOG's release of XCOM: Chimera Squad has shipped without this launcher,
I'm reading posts on the steam forum that mention the game could be run directly from the game's .exe without causing the launcher program to run.
Perhaps GOG didn't want the additional launcher running as it appears to have been unrequired to actually run the game. There are a few other games that GOG has customized before releasing by installing fixes/etc, maybe they did that with Chimera Squad.
Did you happen to detect any unusual outbound network activity when you ran the game?
(And thank you for mentioning that it is functioning via Wine, that is always good news.)