Should continuous variables follow Gaussian distribution in the FGES algorithm?

[gl97at]

Hello,
I would like to use the FGES algorithm. In case of a dataset with only continuous variables, I wonder if these variables should necessarily follow Gaussian distribution. If these variables do not follow Gaussian distribution, can the FGES algorithm work properly?

Now, in case of a mixed dataset (that contains categorical variables and numerical (continuous) variables), should all continuous variables of that dataset follow Gaussian distribution?

Thank you in advance!