I smoked for over 20 years, and spent probably 15 of those years trying to quit. When I switched over to a vape pen in 2014 I had to be very cautious about which cartridges I bought because of the obscene nicotine levels in some of them. I can’t remember the name of the brand, but there was one that helped me quit because they had a lineup that had a really low level of nicotine in them. After a year I quit without a problem. Just over 8 years now since my last cigarette and almost 8 years since I threw out the vape pen!
It can help, but you have to be very careful which vape juice you use.
GOG. DRM-free support needs all the help it can get. I have nothing but respect for Steam, so it’s my secondary choice. The only exception is if it’s a game that’s been out for a while and there’s been discrepancies between GOG and Steam support (or a dev/publisher with a history of said issues), in which case I’ll go with the one that’s better supported.