nbiresev wrote:
"because you have to make a lot of assumptions about what villain holds and what the possible actions are."
GTO doesn't require assumptions about what villain holds or possible actions.
I didn't say it did. If you are using a GTO solver like Pio in 6 max games you have to make a lot of assumptions about what villain holds and what the possible actions, because you are using a GTO solver for only part of the game, and the GTO solution isn't for the game you are solving.
Yes if you start on the flop you need to assume what is opponent range in such spot. Usual way is to use solver preflop solutions and put opponent and hero on such ranges.