You can always get re-usable silicone bags, but they're not as effective imo because it's harder to get all the air out for a good vacuum seal.
The microplastics are in everything anyways at this point, I doubt a few steaks cooked like this are hurting anyone 😅
Imo it looks closer to MagicFrogPrints' stuff on Etsy here
https://magicfrogprints.etsy.com/