You say that "Linux is a niche home OS at best". Wow. Just Wow. Many domestic and international government agencies use GnuLinux distributions. Many companies use them. Look around the Internet and you will find a large percentage of servers use GnuLinux for servers. Netcraft says eham.net is using Linux as well as the ARRL, SK6AW.net, and QRZ.
... a "niche home OS at best". Hilarious.
It is hilarious to suggest it is not a niche OS for home usage. Being used by some servers has zero bearing on home usage. A Black Berry OS 10.x derivative is used by several car makers for a in car OS because it talk well with IOS and Android phones. Does this make it a great home OS? No. For many years Walmart used a version of OS2 for inventory management. Does it make it a great home OS? No. Same with Linux. Wishful thinking will not change this.
You said "Linux is a niche home OS at best". That seems to exclude GnuLinux in other uses, and relegates it to the "home niche". I gave examples that use outside GnuLinux outside the home. Your above explanation goes in the other direction.
As far as home use goes, GnuLinux has WP, SS, DB apps. Audio and video editing apps. Audio and video playing apps. Graphics editing apps. VOIP apps. And Ham apps. IT prints from almost anything.
... and how is "Linux ugly"?