If you are asking about the pilot episode of Better Call Saul where Saul/Jimmy is working at a Cinnabon, no, that is not Walt. This scene happens after the events in Breaking Bad. How long after, we are not told. But you can tell he is still visibly shaken when looking at the guy sitting in his store thinking that person may be there to harm him.
In Saul’s final BB episode, he tells Walt:
“If I’m lucky, a month from now, best case scenario, I’m managing a Cinnabon in Omaha.”
Apparently, Saul changed his identity and he did go to work for Cinnabon. But he’s still looking over his shoulder so it’s probably no more than a year or so after the BB events ended.
Got it..... I couldn’t identify the mustachioed cinnamon roll maker as saul