For the most part in Tekken, yeah. It’s the movement options, specifically the Korean Backdash for many, that a lot of people are going to need to learn and practice execution of if they want to dig deeper. Though, character choice can help alleviate that a bit since characters like Lei either have their own unique movement tech or movement isn’t as much of a focus (Kuma\Panda say hello). Lei’ Wulong’s “Haha Step” is on the easier side, then you just have to learn Lei himself as compensation, haha.
Can totally get far in Tekken doing the more reliable, less execution-heavy combos. In some cases the optimal combo is only a point or three more damage anyway. Tekken 7 Akuma is bit of a special case due to his Street Fighter heritage, you can really squeeze a lot of juice out of Akuma at the highest levels with high execution thanks to his list of various cancels and other non-combo related tech.
Unrelated, been digging into Lei Wulong recently for a bit of fun. Sometimes the mix-up options are so strong I mix myself up thanks to the number of stances.