I received a response from LifeStraw about this, it sort of answers my question. Here is their response in case it helps anyone else.

"LifeStraws are not quite the same thing as boiled water.
Boiling water will kill all the pathogens in your water: viruses, bacteria, parasites, cysts, etc. Boiling water does not always eliminate chemicals and heavy metals in the water. It does not address microplastics or debris in the water.
We have a couple of kinds of filters and purifiers that do different things:
Filters: these remove bacteria, parasites, cysts, microplastics and cloudiness / turbidity. They do not remove viruses and chemicals/heavy metals.
Filters with activated carbon: in addition to filtration capabilities, they also help reduce and remove chemicals and heavy metals.
Purifiers: these remove viruses, bacteria, parasites, cysts, microplastics and cloudiness / turbidity.
Please see our comparison chart for more details on the capabilities of the different products we make:
https://lifestraw.com/pages/compare "