I need to try again to make sure, but from looking at videos and how I'd handle it (just from long time Trials experience) it's a matter of hitting that landing right and bunny hopping right off of it. For short stuff like that it might help thinking of it as a single or continuous action, like adjustment to cushion the landing is the first part of the bunny hop, once you land you jump back off.
And there's the second landing part, although this is mostly for the inclines with obstacles on them. A trick for jumps where the back wheel might be low is to lean forward to rotate the bike a bit then lean back, which (if done right) pulls the back of the bike up. Then back forward to get the wheel back down in contact with the surface.
I've played a bunch of Trials with an arcade stick (and normally gas with the face button), you can get away with a lot without analog controls. Course super steep inclines are a bitch that way but for many they're doable with fast entries and careful tapping.
The slanted+vertical white block part? Find some other videos that show how to do it without the rear wheel trick.
Hard to explain but the general idea for that kind of stuff comes down to bunny hopping off of it, maybe leaning back to turn the bike vertical if necessary, (hopefully leading to the rear wheel tapping the vertical wall and reversing rotation) and leaning forward once your front wheel clears, then hit the brake to keep the front wheel planted on the surface. If done well you'll have forward momentum that'll get the rest of you over and you can work it out from there. There's some brake tapping trick that can help too, if you hold gas and tap brake rapidly it can help rotate you clockwise if you're kinda teetering on the edge.
Yeah there's only so much that can be covered, I thought the tutorial was pretty good. In the older games there were the signs in the background while you had to figure it out (which I prefer but whatever), it's more explicit in explaining stuff in this one and I think it covered more techniques.
Seems like for the most part you're dealing with landing, bunny hops, and climbing, and the game teaches you all that. The hard stuff is basically variations or combinations of that stuff. Only stuff I might add is braking to help get on tops of platforms but even that's not necessary if everything else goes right. There's mid air bike control too but there's too much nuance and individual preference in that stuff, I'd say that's another thing you just kinda learn by feel and experience.
