Are employees who work from home for the convenience of their employers no longer eligible to take the home office deduction due to changes in the tax law in 2018?

A post from a few months ago says that the deduction is no longer available, but many older posts (presumably from before the law changed) say that the deduction is available. If these are now incorrect, maybe they should be taken down, but it is hard to tell, given the conflicting info, what is correct.