large field Freerolls - optimal early game strat?

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So I have "won" a 2k freeroll entry on Party with what looks like a field of 2k+

Is it better to play LAGgier in the early running and hope to steal a lot of pots to try to build a bigger stack early while there are donks aplenty?

Or is it better to play super tight and hope to make a few good hands to build my big stack?