I promised to get back here when I installed everything.
I haven't installed everything yet (I'm still waiting for a wall mount for the center speaker and for a cable for the surrounds), but the BL20's are connected to the Almando and so are the LG OLED and the BS3000.
And everything works just as I expected it to work. So in that regard, I'm happy.
But, currently I would not recommend the Almando as your music solution. There's noticable more static noise coming out of the BL20's when connected to the Almando, than when connected to, for example, my BS Core. For movies it's no problem at all, because there are hardly any completely silent moments in a movie and when there are, I can't hear it because of other sounds in the house.
But for conscious music listening, I'm happy the BL20's are also optically connected directly to the BS Core.
I'm currenlty waiting for Almando to help me find a solution for the static noise, but in the current state I'm happy to take the static noise for granted for escaping the Beovision stronghold.
Will post here when there are new facts!