Its a shock knowing that the unzip program available on linux cant easily extract multipart zip files with ease. There is alternative program unar also available to do this task efficiently.
If u have multipart zip files as follow archive.zip.001, archive.zip.002archive.zip.003 then just execute unar archive.zip.001 and extraction will begin.
To install unar on debian/ubuntu based linux : sudo apt install unar.
Soon enough goodbye november and welcome december, go away pandemic.