I think the biggest difficulty when starting out is that you don’t know common endings and syllable structure, and so it can be hard to parse where the morphological boundaries lie. It’s much easier once you understand those, though you will still find instances where two components are combined in an unintuitive (for the learner) way, particularly if the translation maps to a (apparently) indivisible root in the learner’s language.

I’ve played around with changing Windows system languages before and was indeed thrown off by the slew of Gruppenrichtlinienbearbeitungsprogramm-type calques. Glad to know that Germans also find this offputting ;)

Löschen can also mean to offload cargo from a ship…

I did not know this one either, and it seems even more different from delete/erase/extinguish. I had to look this up; wiktionary says that the unloading sense is actually from a different root (MND lössen, cognate with “los”), which may have changed due to association with the “erasure” sense, particularly in the context of erasure from ship inventories and logbooks.

Also, thank you for the context. This kind of detail tends to be extremely difficult to search for.

TIL that löschen is also used to mean extinguishing fires. Firefighter support vehicle, I guess? Or supporting firefighting vehicle?