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The The Restaurant at the Edge of the Universe, previously known as The Water Cooler, is a place to post stuff that has absolutely nothing at all to do with computers, broadband, Scot's Newsletter, or anything that's "supposed" to be here.
According to Nvidia's driver search site, the newest driver (the one that's been updated for the newer kernels) is:
If that's not in your Mint 19.3 repos, you'll either have to wait for it to show there or you'll have to install from Nvidia manually.
What is your vid card? And what version of Nvidia drivers is Mint installing?
The reason I ask is because Nvidia has been a bit slow to update legacy drivers to be compatible with the newer kernels in Linux.