Question: Karl, can I have an exposed light bulb over the shower compartment in a new home?
Answer: No. This is terrible on so many levels. Remember safety first. 2017 NEC Section 410.10
Luminaries over the shower must be suitable for wet locations. There is also a zone above the shower/tub which limits what can be installed.
No exposed bulbs, this could shatter leaving glass shards to walk on.