We have 6 french doors in our house and lots of windows. Our house has such a lovely light and airy feel to it because of the abundance of natural light they give.
The downside to this is that they have a combined total of 225 individual panes that need to be taped off using some magical non-tape liquid called “liquid glass mask”, painted (not once but twice, or else it’s streaky) and then scrape off the glass mask goo. One door with 15 panes took almost 2 hours. *passes out from painting exhaustion*