>There’s way more background info that I didn’t know (what do you mean a latitude and longitude doesn’t mean anything without a bunch more info?!) that’s necessary to use it effectively.

That's sort of true, but QGIS could do a much better job of helping you manage this stuff, figuring out the right CRS, helping you make sense of clashing CRS'es etc.

> highlighted points, whether selected through the selection UI or through the data table… should always have a higher Z-order than the other points around them

I haven't come across that one much, but generally I wish the UI around querying data was much better. First it takes me ages to find the one specific tiny little button which lets you query stuff, then you have to remember to pick which layer you want to query, etc etc.

It's the most obvious mode, and should be the default, and not buried amongst a dozen other icons I'll never use.