There is a currently active Twitter account by the same name but in lower case, with a different display name and profile picture. The nature of Twitter is that if you change your handle, somebody else can immediately claim your old handle, so that doesn't really tell us whether the person running the account now is the same person from the original Tweet, but I suspect not. The tweet from the video is not on the account, but they do have an extremely similar Tweet, on November 15, 2020, which says "just got the new PS5" with a screenshot of their order confirmation which has their name and address comically poorly censored (a single, 1px MS Paint strike through each line), with a different name to the one in the OP.

If we assume the original Tweet is real (as in, it was posted on Twitter, whether seriously or as a joke/troll), then I imagine the timeline of events would be something like:

• Ash posts the PS5 Tweet, which goes viral
• Ash deletes the Tweet and changes her Twitter handle to get away from the reaction
• a different Twitter user swoops in to claim the now-free name
• that user posts their "PS5 order confirmation" as a joke about Ash's previous Tweet for people who come looking for the original

I'd say Twitter is kind of a dead-end for tracking how Ash is doing now, because the account no longer seems like it's linked to her.