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It depends on what you're doing with the pictures, how often you crop your shots to taste if you plan on doing large prints, if you have quality lenses that can utilise their resolving power at the resolution etc
Some cons of high pixel counts include large file size, low dynamic range and light sensitivity as a result of each pixel having to be smaller, normies insisting you don't need a big fancy camera because they heard about something called the megapixel war
There's a workaround for most of those things though. You can even compensate for pixels by making a composite and stitching. There's even that Lumix phone with 40mp and it samples the image down to a still-beautiful, managable size
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