I finally finished a Civ VI game, t220 CV with Gorgo.

Emperor, Scrambled Africa map with only 3 AI (picked Monte, Jad, and Phil), 20-some CS. Several mods - including Techs and Civics x 1.25 (lol, forgot I had it active), Anti-Barb Policy Cards, Jungle Mills...
I spawned in the Congo area, lots of rivers, not many hills in 1st and 2nd rings of best housing/spread locations and of course they all got used for Acropolii. Lucked out on several great CS nearby, with a thin mtn range between me and my opponents to the W and NW, so it was easy to plug gaps = no wars. Just cranked out culture, very slow to get CH in place, only one Campus early, no IZ until probably well after t100. Just flew through the Civics Tree - made a couple bone-headed moves like forgetting to switch to Merch Rep until one turn before Democracy (I actually did fine with the cards I had), and sort of bungled the Tech Tree a few times.
Barbs everywhere. I got all but two Artifacts and two Shipwrecks, a bit of a challenge to escort Archeologists, and most sites were in far N and NW unsettled deserts and coasts. Started with 8 core cities, and settled 4 more late to get a few seaside resorts (the only good location was Northern Madagascar). Just so little production to do much until riverside Jungle Mills came online, and borders expanded to hills.
Once I had Cultural Heritage I was finally able to switch to some Science cards, as a few more Campuses had finally come online. Strangely, my cpt went up when I switched (???). It still took way more turns than I expected to win. I am surprised that with such an OP culture civ, ideal conditions and CS, and with pretty intense focus - that it took so long. I thought I was going to win 50 turns earlier, as my GWs really started pushing tourism "mid-game".
I would highly recommend the Scrambled Africa map mod for replayability, and the Jungle Mills mod.