Notes:

Part 1: https://knowyourmeme.com/photos/1404363-dragon-ball
Part 2: https://knowyourmeme.com/photos/1405802-dragon-ball

Before I get to Roshi vs Jiren, we get a typical "power level is b-------" moment with the Pride Trooper vastly stronger getting owned by Roshi (literally Yamcha'd him like in Tenkaichi Budokai 21rd) and even impressing the SSJ3 level Android 17. I don't see much people calling that out since 17 apparently doesn't know Roshi and thinks he is powerful.
You can say the Pride Trooper was weaker than King Piccolo, which is fair since the gab in power between the Pride Troopers might be far apart.
Toyotaro also takes the time in reminding us that Super made Goku the equivalent of Ash Ketchum now, as he can't recall anything he learned from his masters. Something I mentioned why I consider Revival of F to be the 3rd worst thing from Dragon Ball, since Goku couldn't even the plot laser from Sobet coming, despite training with Mr Popo should prevent s--- like that happening AND we saw Goku actually using those things he learned in practice like Goku vs. Tien in Tenkaichi Budokai 23rd.