Silicone Craft Mat vs Functional Form Cutting Board Set, 3-Piece: which is safer?

Where these two actually differ

• We flag Silicone oligomer leaching at high heat, Surface degradation and microparticle release and Off-gassing of volatile organic compounds (VOCs) on the Hello Hobby and not on the Fiskars.
• We flag Microplastic shedding from cutting action, Bacterial biofilm accumulation in deep cuts, Staining and odor retention and Heat-induced warping or leaching on the Fiskars and not on the Hello Hobby.
• The Hello Hobby is silicone where the Fiskars is Polypropylene or similar plastic; no nonstick or waterproof coating disclosed, which is most of the difference in these two grades.