Yes, that has been my experience with my lead and cadmium problem. My eGFR kidney numbers went from high 50s to the 70s in a few years. It remains there today a few years later.
My impression is that sauna is more gentle for detox since it is not mobilizing heavy metals like the sulfur based natural and Rx agents do.
However some people with adrenal fatigue and those who cannot sweat have trouble with too much sauna.