I'm really impressed by how well optimized this game is. There are lots of granular options for visual tweaking.
Does anyone remember ID Soft's "Rage" launch from a few years back? That game was highly anticipated and also got good reviews, but suffered from a wide variety for technical problems on PC. The engine was so glitchy that it barely ran on AMD video cards for a week before they released drivers to make it playable. Also, there were hardly any configurable graphics options besides resolution. ID Soft didn't make the engine from scratch either. It derived from Doom 3's Tech Engine 4.
Comparing the Far Cry 5 launch to Rage reveals a night and day difference.