Forcomparison, I connected a Samsung SM-A520F to the same Monitor, It did not crash, it started to charge, and even acted as a USB host (I noticed because the xperia on the downstream port switched from charging to developer mode).
Since it looks like a clear duplicate of the bug below as suggested by @direc85, I will however close this topic to encourage all the discussion about it to all happen in the same place. If anyone thinks this is a mistake, please send me a direct message and I can revert it.
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