[tomjakubowski]

Not really true in my experience, unless you're talking about side salads at typical restaurants. At a "main salad" kind of place, you can do a lot better in terms of greens, nuts, dressing options. Look at the menus for chains like Sweetgreen or Simply Green

[mjevans]

I haven't seen any of those near me, are they regional?

[TheCoelacanth]

Not regional, but limited to a relatively small number of major metro areas[1]

[1] https://www.scrapehero.com/location-reports/Sweetgreen-USA/