I wanted to get docking station with the VL103 from VIA Labs, Inc., searching for this particular controller for many months and therefore wanted to share what I finally got in my hands (docking station that works smoothly with the Librem 5, up to my very best expectations, even without USB4® certification).
EDIT: I bought it from AliExpress JQrain Store, with VAT (that goes directly into the German budget) included and payed.