To be clear. Excel is super capable, and I consider myself pretty good at it. But Microsoft is just not good at designing software anymore. Their all of their software has gotten bloated, has tons of inconsistent user interfaces, and just doesn't perform well.
Any time I'm doing something intense in Excel it bogs down and often crashes on me. And when it runs, it runs so slow. Seriously, graphing 50,000 data points is really not that difficult of a task for computers today. I have have a heavy duty simulation computer. I can do so much more, so much faster in a Python notebook. (very different, I know.)
That being said Microsoft office is ubiquitous and everyone knows Excel to some degree, so it's still the best software for general calculations.