236B ender does a bit more damage (like ~200 dmg added to most combos), but the knockdown for both of them is the same. 5B 236B is the ender you should do for optimal damage. The timing for the 236B ender is a tiny bit stricter since if you hit the 5B too early they can tech out, but if you're mindful of that it's not really that much harder.
I know this video is from last year and you may not read this but, I heard this character was relatively easy and good for beginners but I can't do these combos at all, im not even getting close lol. Everything surrounding the j[C] j6C land 6[B] seems impossible. I either jump too early or too late, the j[C] won't come out sometimes, I've never hit the 6[B] once no matter how many different ways I try it. I know you can't help me I am just venting.
Keep at it, the timing's pretty hard but you'll get it down. I think one of the major things that helped me initially was waiting to see the wall bounce from the 214B before jumping and also walking back like a pixel before inputting 6[B].
Also she is quite easy execution wise in the sense that she can get 3k-4k off any random ground strings into 236A as well as an amazing knockdown. She can also easily do more by going into her air combos, but you sacrifice the knockdown (these would usually be used just to finish the round easily). The hard part is when you want to do bigger damage but also get the good knockdown, which is where these combos come into play.
