First of all, there are initially no building materials that "are" asbestos. Asbestos fibers were used from the 60s to the 80s to reinforce various panel materials and adhesives – but not as an individual building material by itself. Typically, asbestos fibers are found in building materials that had high requirements for long-term strength combined with elasticity or weather resistance. These primarily include facade claddings or roofing (Eternit panels) and adhesives in the area of flexible tiles (vinyl tiles – some of the tiles themselves also contain asbestos) or (more rarely) screeds.
What is shown is rather an interior insulation for thermal or sound insulation. It looks more like EPS insulation with attached cork from the 80s or 90s, which does not meet the typical requirements where asbestos would have been used. The light beige color is also untypical for the old adhesives in which asbestos was used.
The tip regarding burning is, related to asbestos, good – in general, the above guidance should help to burn as little Styrofoam unnecessarily as possible.
