Deepin is a bit om the heavy side. I belive a bit heavier then standard gnome. The only distro with deepin based on Ubuntu as i remember is directly from deepin them self on Deepin OS, but i wouldn't trust their store as it has happend shady stuff about the store before. Last time I used deepin was on Manjaro and I know that Deepin is the flagship DE on RebornOS both being Arch based.
I belive you are correct but it's stil a bit shady and can happend again. I do recommend testing deepin om RebornOS which is a fork of Antergos. Reborn OS has a great and friendly community. I used deepin for a few monthes before I went back to kde and then back to deepin for a week back to kde and now i am rocking gnome for the past month. I dont really like ubuntu based OS as they most likely will use snaps which I hate since they are slow as a snail.
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