What employers do care about is that you worked on something challenging, you're able to overcome adversity to ship something, and you're eager to learn more.
I'm in GIS. (geospatial information systems) Turns out knowing how to define a camera using a matrix and intersecting a ray with a mesh of triangles is pretty useful. And it turns out that if you don't know how to do these things and just sit down and start cowboy coding the solution you're gonna come up with is going to need to be rewritten by the person they hire when you leave.
There are a lot of things I run into in my job where I genuinely don't know what the right algorithm is, compared to the number of times I've said "I recognize this thing" and brush up on the literature and implement some variation on it as applicable to my particular usecase. I'm kinda curious as to how much of the stuff I've written has someone come across it later and been like, "wtf is this shit, you just use <so and so's (probably Djikstra's)> algorithm".
Thankfully python has a rich set of built in datastructures, using a dict (or a hash map in other languages) turns a lot of O(n) problems into O(1) problems. The bisect module turns O(n) problems into O(n log n) problems. I'm always keeping my eye out for more of these big-o-reducers.
That said, in production software it hardly ever matters these days as long as you're not doing anything exceedingly daft. Fast enough is fast enough.
Not a single person has ever asked for it.
I also remember the recruiter telling people you should only have your GPA in case it was super high and it would work as an extra to your resume. So I would think your interviewing skills matter the most.
Dark side: Employers care about your technical interviewing ability and your GPA. Technical interviewing focuses on a subset of skills around certain algorithms and data structures. The courses most relevant to interviewing will spend at most a couple of weeks on the topics you need to know well.
Bright side: There's so much to know in CS that regardless of what courses you take, you'll likely have to (or want to) learn more on the job. So, in college, you want to focus more on learning-to-learn technical material. Also, certain CS courses contain so much outdated/irrelevant info that you can more efficiently learn all you need to know on the job or through your own projects.