You can also use the percent mode of the bevel tool, there are different ways the bevels are created and percent is one of the most underrated but also most useful modes for something like this. All you need to so is to create some edges on both sides of the corner / edge you want to bevel as your guides or limits and done. The Bevel will adjust to the guides or limits. Very handy.
Snap! I was just about to say the same . Do it with a control-lopp, and percent in a modifier. You can even delete the loop when done. Snapping is available for precision.. etc.
Or you can just use the weight option in the bevel modifier. Set the bevel to the highest and to get tight bevels you decrease the bevel weight. That's what I use the most. (N tab for the bevel weight slide btw)
The main benefit of the method in the video is that you have full control of not only every edge, but every vertex, so you can make extremely different bevels. I will experiment with your method as well, thank you for the input
I am not sure when this option appeared in Blender, but at least in 4.1 the Scale tool has another mode called "Scale Cage". This works similar to scale tool in Sketchup (for who is familiar with that) and will help a lot in such cases, since you don't have to play with the 3dcursor every time.
01:17 not true, you can make a off set edge loop for bevel. Select edge you want beveled and press CTRL SHIFT R. Then select the edge again, and bevel. Your bevel will be constrained with in the pre defined off set edge loop.For more precision, press E to match shape of adjacent edge loop. Use F to flip target adjacent edge loop. This knowledge has made my modeling performance so much better. 👌🎤👊
Really really clever way using cursor to manipulate the vertices, however, at this point, any change will consume a lot of time, it is better using subd modelling instead.
One way you might give a try is beveling by percentage (100%, no clamp overlap) in a modifier, putting in guide loops to restrict the width (can be different on each side of the bevel) .. adjust the guide loops to taste, follow up with a Weld modifier. Quite intuitive, non-destructive.