A recent app update lets you mute certain subs. I got rid of combatfootage and its ghoulish ‘last moments’ drone shots this way.

Are you still looking for advice on this? I’m not familiar with GIS programs so much, but such things could be done through Python or R.

I’d guess the key is just to measure the length of the river point to point and then using overlaps or distance measures to calculate which features exist at which point along the river. The visualisation itself is quite custom, but possible through libraries like ggplot, bokeh, etc. Some labels/annotations might need to be added manually via illustrator or something if there’s a very specific look you are after.