I have used both Bubble and Roon with my DSD with Bridge 2. I much(!) prefer Roon. Getting Roon to connect with the DSD/Bridge was extremely easy, even for this computer novice.
Although the Bubble app can play Tidal, it is not integrated with your other music and it is very difficult to search for other artists. Roon puts everything in one tidy place…your music, Tidal, music reviews (All Music Guide), recommended other similar artists, etc. It also sounds great to boot (IMHO, it sounded better than Bubble and JR21).