Fuji X-E2 RAF Files from v4.0 firmware

Hi all. First time I write in the new forum so I’m still checking how it works.
I’ve just found out this thread after a research since today I’ve shot some RAFs with my X-E2 and I had the same problem as above. In the file browser I see the RAF files but I cannot edit them. RT crashes.
I’ve read above but I wonder if a solution has been found. I have the 4.0.12.0 version on Ubuntu. I’ve read other software like Lightroom, I guess, can read the RAFs but I’d like to avoid installing other stuff on the computer.