This little fella left me today to get its connector replaced, hopefully it will be back soon!
I received it on the 26th and used it almost non stop since. There was a gap of a single day when, while tidying up the cabling in my pc, that involved unplugging and replugging the power cables, some of the pins in the connector got pushed back and the GPU wouldn't get enough juice to start. I managed to sort that out with a bit of DIY as you can see in my posts in the Connector Concerns thread, but now I'm sending it back to Gigabyte (thx GIGA-Man!) to sort it out for good.
I actually had a few crashes while playing Ghost Recon Breakpoint on stock settings. Doom and COD:MW were stable, even during extended sessions, so it may be GR:BP, or my 750W Corsair PSU couldn't handle the peaks, or maybe the pins were not connecting properly, I will never know, but I will keep you posted how it goes once I get it back with the new connector.