This works for me
you can also add "DRI..." indicator inside the destination run box desktop icon too.
Edit: you can check this option works reading temperatures with lm-sensors
sudo apt-get install lm-sensors
Luckily length of new grub option matches length of existing options (it is not longer). I guess --- is used to inform end of options, I've just booted 20.04 LTS (I assume it either applies that same to 18.04 LTS or as one year passed it is Ok for you to use 20.04 LTS now) replacing "quiet splash ---" with "toram" and have not noticed any ...