Oh I have a very specific one for you buckle up haha. So one thing in macOS that gets progressively better and worse over time is actual multi-monitor support. It’s fine but I swear either no one at Apple uses multiple monitors or everyone actually has only cinema displays arranged in a horizontal line haha. I have used OSX/macOS for a long time and it was much worse for a long time but had gotten pretty workable then BAM around Tahoe or so arrangement is buried in some menu now and I’m not sure the function of the row of displays actually is now? Anyway, it’s mostly great, this is the one thing that apparently turns into a rant haha! Okay two things, bring back eGPUs on Apple Silicon :D

Lots of good suggestions here already but what is your upstream DNS provider and is it your ISP DNS from DHCP?