How can I see running fitness separate from biking fitness?
I cannot figure out how to create this chart. I don’t see the option of differentiating between run and ride
Have you looked at the link and associated screenshot? You need to click the 3 dots and filter for running and riding activities respectively
I don’t seem to have that option
The advantage of having a web app is that evrybody is on the same version. Thus, if @Olly_Thomas says the option is there, you can be 99.9% sure it is 
Choose exactly the same options: Load - Fitness Average and click on the dropdown next to “All activities”. Then add a filter for Activity type. For the first select only Run and for the second only Ride.
Don’t forget to include “Virtual Ride” as well if you use Zwift et al…