I honestly think I might do both. With that heavy a reduction in microplastics, it's almost a no brainer, if there's a balance one can strike.
I.e. if I know the body will accumulate x% of microplastics after n [period] then I'll just sauna every n [period] time frame, instead of lazily every week or month like most other saunacels, and do hot baths 1x-2x per week
I might piggy back off of this post