Originally Posted by
gojko88
Well, I'm not aware of any example in SkyTeam where own elites have
fewer benefits than other airlines' elites. Let's hope it stays that way

This Delta Platinum laughs bitterly at that. Have a look on the Delta board at lounge rules for Delta elites vs. other SkyTeam Elite+ elites.
I’ll also note that Delta tends to put their most inexperienced and least competent agents on the chat discussions so it can be helpful to cross check and all call anything they say. You need to find one of the old school, 2019 or earlier phone agents to get the best info.