With nothing much left to beside the Troupe and Godhome, I figured it best to "finish" the game. My strength + quick slash charm loadout made fast work of the Hollow Knight, however, Radiance proved far tougher.
Took around 5-6 tries, I ended getting lucky with both where she spawned and the attack used, letting me safely hit her from under in the 3rd phase. Finally rid the infection from Hallownest, shame I couldn't save Myla and Cloth, but I suppose no cost is too great for saving the land. My in-game completion is timed at 33 hours, less then what I've recorded, perhaps time in menu's isn't counted for leniency while speedrunning.

Did Grimm's fetch quest with new born son, annoying you always have to spend two charm notches on them when challenging Grimm. I managed to beat his 1st form on the 3rd attempt by playing it safe; which I can already tell from my first try at NIGHTMARE KING GRIMM isn't going to work out. Maybe if I equip the shape of unn and heal during the bat phase.