Sundered Doctrine is on the shorter side as far as dungeons go, with just three encounters and two not-so-tough boss fights. Provided you can get your head around memorising all those symbols ...
Active target-loot/symbol at the start of Destiny 2 Sundered Doctrine (Image via Bungie) You can also check the active loot and symbol in the run. To do so, in the initial room with the Guardian ...