For some reason, the snap package 126.96.36.199.g6bd7cc73-35 doesn't work on Ubuntu 18.04. It fails with:
ERROR: ld.so: object 'libgtk3-nocsd.so.0' from LD_PRELOAD cannot be preloaded (failed to map segment from shared object): ignored. execl failed: No such file or directory child exited with status 1
Same for 188.8.131.525.g4d3f03c7-5 (edge).