Hello, Unfortunately 3 years later this is still not added, the device still works much worse without it, and it is still required to obtain the firmware separately to get the proper performance.
The repository at the URL referenced got deleted since then, but can still accessed via: https://github.com/lwfinger/rtlwifi_new/tree/5406ea7f6f2ae1cc0da9e6f65a94c58d7d563b23/firmware/rtlwifi -- With respect, Roman
