This is making the exact mistake
@Manbearcat is talking about -- ignoring the short term in favor of an argument for the long term (which also doesn't hold up, but different topic).
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Okay, in the Rime of the Frostmaiden game I'm in, my character has a number of goals. We just sacked a duergar keep. My win con here was to get information on what the duergar were up to, and to not be killed in the process. Also, I have the win con of showing that I'm useful to the group, because my character is an outlander with a very "if you are not useful, exile" mentality. I also had a player goal of continuing my fun rivalry with the artificer. All of these things have win cons. I took very little damage, I was able to find an invisible duergar who was trying to sneak away, and I rescued a party member from a trap with clever thinking. All things that align to the various win condtions I had for the session.
Now, is there a win condition for the game? Sure is, complete the module. We're playing this game for the module, with little expectation to continue to a longer campaign. The idea of the never ending game without a point is one I increasingly find odd.