I suspected that they don’t, so I asked ChatGPT and this is what it said:

Bats generally avoid cedar houses because of the natural oils in cedar wood, which have a strong scent that many insects (including those bats feed on) and animals find unpleasant. The aromatic oils in cedar can act as a deterrent, so while cedar is commonly used to keep moths away, it often has the unintended effect of discouraging bats from roosting as well.

If you’re considering a bat house, pine or plywood are usually better choices since these are more neutral in scent and bats find them more inviting for roosting.