You can fix the orbit lines using this guide.Back when I was using my Nvidia GTX 970 I had constant TDRs while playing Elite. Elite was the only program that would TDR the video drivers. When it happened, it was always while approaching a landable planet.
The "solution" was to underclock my card. Apparently, the factory OC was just unstable enough and Elite is (apparently) super sensitive to that instability.
I didn't like that the solution to my problem was "make my video card worse" so, ultimately, I just dealt with it for a while and accepted that if I was approaching a planet there was a good chance my game crashed.
Haven't had any issues after upgrading to the Radeon 6700 XT that I'm currently using (aside from the corrupted orbit lines).
Works fine for me (RX6800), you only have to reapply it after every update.
Otherwise no problems with this card for me.
I bought it second hand, it has even spent some time in the 'mines'.