The commercially available solvers may be using CFR, but they are not anywhere near as strong as Pluribus because Pluribus pre-computed solutions for a reduced

The commercially available solvers may be using CFR, but they are not anywhere near as strong as Pluribus because Pluribus pre-computed solutions for a reduced state space, then mapped the hand and actions into that reduced space and solved from there. That meant Pluribus could come up with a much better solution in much less time than the commercial solvers. This is also why most of the solvers only solve heads up.