Multiple windows get corrupted

When running vim (mostly) in multi-window mode in ubuntu, my windows get corrupted with random characters. Hard to explain, but as if the screen doesn't get refreshed. Like to see the actual buffer contents, I have to move up or down continuously. I try ctrl-r or :e with no result. I am on vim 8.2 and ubuntu 22.04.

I appreciate any help with this matter.

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