Lutris is already listed under Synaptic, so I don't know why you'd need to add the PPA. I recommend checking what version you have. Synaptic shows as 0.5.7.1 - any other version may not work properly.
Unfortunately, you may have to do some reading or post on the Wine forum, as linked by 337harvey. You may or may not need DXVK. If you do need it, it can be easily added using PlayOnLinux. For Lutris, I don't know. This also depends on if you indeed need DXVK.