Lutris will also let you install a game from a GoG offline installer using the install script from GoG (using the script means that if there are dependencies like the game needing a specific DirectX version it gets automatically configured in Wine).

Also if I understand correctly the article, going via Bottles means you have a single Wine "instance" (i.e. a wine prefix) for all your GoG games - as GoG access in managed via GoG Galaxy which is a Windows program - whilst Lutris by default gives you one wine prefix per game, so it's a bit better isolated and you can chose different Wine versions for different games (for those games were latest is not bestest).

Last but not least, if you want further isolation from your system in Lutris there is a "command prefix" option (under runtime options if I remember it correctly) where you can put the prefix for the command that runs wine with your game, which let's you run things like firejail which sandbox the whole Wine instance and whatever game it's being used to run (in my system I have it as default, configured to deny things like network access and privilege escalation). This is maybe more applicable for people sailing the high seas, but it will also do things like blocking games from sending game analytics over the network if configure as I did to block network access.