In the US, I would venture at least half, if not more, apartment complexes have wood and drywall walls and ceilings. No concrete is used above the first floor.
>The style of buildings originated with the work of architect Tim Smith in Los Angeles, who took advantage of a change in construction code allowing the use of fire-retardant treated wood (FRTW) to construct buildings up to five stories.[5][7] From this he saw that what became the "Five-Over-One" model would bring the construction costs down substantially, making a 100-unit affordable housing project financially viable.
I have not seen any numbers showing that living in these types of buildings poses any additional risk, and it has been at least a decade since many of them have been built, so I presume it would be evident by now.
https://en.wikipedia.org/wiki/5-over-1