Not confirmed, as far as I see it.
No, it is not confirmed. But Louie Gohmert has been talking about it. Not making firm statements about the reality of it.
That is not unusual in instances like this. Some hint of CIA involvement. That could be good or bad depending upon what color of hat they wear.
That said, I saw this last night:
oriJONal @orijonal SCYTL RAID
https://twitter.com/orijonal/status/1327277595583414274
@replouiegohmert
reveals US Army (CIA?) team raid on Scytl server facility in Frankfurt, Germany to recover “extremely compelling” data detailing vote switching.
Long thread that seemed pretty credible. Most of the pieces fit.
This has been debunked.