I have had a bitcoin node on an umbrel for a few years as well. No problems.  I have kept other stuff off it though. At the time a lot of lightning could overwhelm it depending on the power/io config.  

RDClark

macarena

How is it performing?  I installed too many things on my rPi4 and at somepoint it couldn't keep up.  I migrated to a Black Friday deal on a n100 mini pc.  I am a huge fan of Umbrel and Start9.  Anyone thinking of starting with this setup should go for it.  And shout if you hit any hurdles.