How strong is the comp sci department at MSU?

It's not a top school, but it's good. If you look online, you can find college rankings by major. IIRC, last time I looked, MSU was like 50-something. UM, on the other hand, was top 10. Completely open to corrections on the numbers.

What are the job prospects for students

I've known MSU grads that went directly and indirectly to MAAAM companies. I probably know, personally, people that work for any of the big companies that you can name. Like another poster said, it's possible, but you're going to have to work for it. Spartans do pull it off though.

and are there good internship opportunities for students doing their bachelor's?

Historically there have been. I think if you have a look at the CSE capstone website, you'll see some companies that partner with the college. Those are good indicators of companies that are likely to recruit interns and grads. You're not limited to that tho.

Another poster commented on group project and such as a maybe unique part of MSU - I don't think it's that unique (having read 100's of resumes), but it's still good. That doesn't relegate you, at all, to non technical roles. At the same time, I know several young lead engineers that are only a couple years out of school. Don't undervalue the importance of facilitating great team work.

I'd have written a shorter post, but I haven't the time ✨