GFCI outlet with two branches
Absolutely yes ! you could have as many receptacles fed off this load terminal as you want! (Pig-tailing is the right way to do multiples)
Would you like 1,2,3 branch circuits going in different directions from the load? This is 100% code compliant!
Caution there are internet only electricians that do not understand both code and the use of the load terminals your use of the load for multiple loads , branches is code and device compliant.