I've never heard of CS undergrad programs requiring a technical writing (TW) course, let alone many. Can we do a quick poll? Leave a comment with the name of the university where you got your CS undergrad degree, the year (or decade) you graduated, and whether or not TW courses were required.
EECS at Cal for example doesn't seem to require any TW classes: https://eecs.berkeley.edu/academics/undergraduate/cs-ba