With most luxury hotels they want to earn your business.... If this is really important to you, some hotels will make it happen. Working with a professional TA might be helpful for this. Bonne chance
Yes you're fully correct and my TA (and also by myself) was able to confirmed the 4 pm late check out prior arrival. However I don't want to ask for a favor each time to my TA and/or the hotel especially for a short stay (one nigh stay with a late check out required = FHR),