I saw a video (specifically this: link).
And wondered what a viewsnap is and how to do it.
a viewsnap is setting in-game sensitivity to an extremely high and precise value to perfectly aim a shot or angle, to do a strat with one only really requires knowing the sensitivity for the given route and how to set up the starting angle (typically entering a floor portal, since your yaw gets reset)
with the sst plugin used in runs (see resources) pretty much everyone sets sst_mouse_factor 20 to emulate lowering their mouse dpi so its a little easier
Viewsnaps are highly situational; how you do one depends entirely on what you're trying to do.
In general, if you need to move your camera from angle A to angle B, you first find the difference (i.e. -90 to -43.24 = 46.76) and then divide it by the value of m_yaw, which should always be 0.022 (i.e. 46.76 / 0.022 = 2125.4545)
By setting your sensitivity to that value, your view will move in increments of 46.76 degrees.
This is only useful if you can first find a way to get a consistent viewing angle and position. Again, highly situational.
Starting now and currently being grandfathered, all console runs will be manually retimed with load times removed. This process will be redone by the verification team anyway, so don't worry about doing it yourself when submitting. Massive shoutouts to Tactix1 for doing this basically single handedl