Yes, Chinese batteries (and in particular cheap Chinese goods using Chinese batteries like e-bikes/scooters...etc) are the most numerous in their examples, but the risk exists with all the major lithium-based chemistries (considerably less for LiFe as noted) and aged batteries present higher risk than new batteries (due to dendrite formation for example), so one needs to be even more careful, and take greater precautions when repurposing cells, particularly when they will be co-located with a huge number of other cells, and placed inside a domicile.