Yeah they didn't completely remove it, but they did a good job of hiding it by not making it an option to turn on in the GUI. Have to use a terminal command to enable it:
https://apple.stackexchange.com/a/337871
In general with a HiDPI screen I don't find any need for it. But on a low-res display like the typical 24" 1080P models it certainly helps.
Re:Time to Upgrade Your Monitor
by reda-alaoui on Friday June 19, 2020 @02:50AM
(#23571755)
Starting with Catalina, it does not fix the issue. I had to send back a Macbook Pro 16 2019 because of that and go back to Linux.
But yes, I didn't know that they ripped out subpixel rendering in late 2018 by default.