Boss Linux is not restricted to government use u can install and use it & Provides for school use too.
Canonical had to do a lot of work to make Ubuntu as polished as Windows or Mac.
The downside, canonical is funded by Amazon, All the search inside ur desktop is send to canonical servers indeed sent to amazon that provide ads. We can change it though, Ubuntu by default keeps the option.
There are thousands of distros out there, Boss Linux runs on Gnu/Linux debian with gnome shell extension just like Ubuntu.
But, Boss Linux doesn't have more graphics hardware support for graphic processors ex Intel Haswell, broadwell,skylake..,& Nvidia, Amd drivers. It won't use them efficiently.
Lap is on Pentium or amd a4 equivalent it is more than enough for Boss. Less hardware support means, No hibernation. For video editors or heavy program users it isn't a choice.
Software support is less in (apt) repositories. U have to install from gdeb in terminal to get other apps, Boss has software centre (alt to synaptic) with less apps compared to Ubuntu software store.
Also, Ubuntu comes with language input & Indian server (supporting regional fonts).
"Ubuntu is a mainstream distro", just like Debian (Gnu/Linux), Fedora (Linux kernel), Elementary (Pantheon environment) & Mint. Though, more Technical users have Archlinux or Slackware.
Now, Decide! A mainstream or a basic need.