Raspeberry PI is a particular system that does not always adapt to the generality of the Linux kernel.
I use one of the official Ubuntu derivatives and I really like the BeBlurt interface, the new communities that have been created, the graphics, etc. but I can't subscribe to them and I can't publish. I can log in without any problems, though.
Anyway it's very commendable your commitment to develop this new frontend.
Greetings and thanks on behalf of the whole community,
Oh, I prefer not to use Raspbian on my Raspberry PI due to certain compatibility issues with some of my specific applications, such as the one for extended outdoor WiFi. Instead, I opt for Ubuntu Server, or if I need a desktop environment, I go for Ubuntu Mate. Currently, all four of my Raspberry PIs are occupied with tasks related to the preparation of the TESTNET and other projects. Hence, I'll have to wait a little longer to get a free one for testing purposes.
You are right, no problem, I see that you already have enough work to develop.
Ubuntu MATE is a good Ubuntu derivative. It was originally created by a developer from my native country (I have double nationality Italian-Argentine) hence the name MATE which is the most widespread drink in this country.
Greetings and good sunday.