> Even editing simple text documents has become painfully slow on my 2013 Macbook Pro.

I just installed Linux Mint on my 2013 MacBook Air, and now it's fast enough that you wouldn't know it's an old computer. Really amazing, it seems like Mac OS in particular is just super resource heavy. I realize Linux pretty much defeats the purpose of owning a Mac, but I'm just glad not to have to throw out an old computer that has seen me through my entire career shift into programming so far.