Why are the prebuilt archives so large?

[jqnatividad]

That's because each archive has all the binary variants in one zip file.
For example, the 190 mb qsv-0.125.0-x86_64-unknown-linux-gnu.zip has the following files:

66M  qsv 
63M  qsv_glibc-2.31
52M  qsv_nightly
54M  qsvdp
54M  qsvdp_glibc-2.31
41M  qsvdp_nightly
14M  qsvlite
14M  qsvlite_glibc-2.31
40M  qsvlite_nightly
66M  qsvpy310
66M  qsvpy311
66M  qsvpy312