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Seems they fixed their launcher to load the game correctly since the Hotfix, so that workaround is not needed anymore.
Mods load fine in my case and if they don't in your case it might have to do with some mods being outdated. There are already many threads regarding that.
A race condition with the session handover / SSO in the game that would cause mods to not load correctly under some circumstances. CO has resolved the issue and, as you correctly assert, the workaround is no longer necessary!