Last year, when I was preparing for the postgraduate entrance examination, I used the video of Teacher Li Yongle. Line generation really speaks very well. That's the video of their class, and I can't find it now. I suggest you install an electric donkey software and search for "Postgraduate Mathematics" in it. There must be a video of Li Yongle.

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I downloaded it here at that time, and it was very good. Good luck.

Supplement: You can search the electric donkey online to see if there is anything new, but I can tell you that the linear algebra we have learned will not change in 10 years. If you can't find anything new, just use what I told you.