Below is a description of what I did to get results for a case, and I got the height product as the attachment
1/ S-1 Level-1 SLC products: Split and Apply_Orbit_File.
2/ Create stack using Backgeocoding.
3/ Apply Interferogram formation.
4/ Deburst the result.
5/ Apply TopoPhaseRemoval.
6/ Snaphu Export.
7/ Conduct snaphu to get unwrapped phase.
8/ Snaphu Input with the result of 5 and result of 7
9/ Apply topographic correction.
10/ Apply phase to height.