My 2020 return was filed in March. It was put on hold due to a technicality. They never bothered to contact me about this hold, and I waited patiently for them to process it, believing the news reports of them being severely backed up. But in November, I finally called to see what was up, was told about the hold, they quickly cleared it (without my even asking, let alone needing to do anything to resolve it), and I had my refund less than 2 weeks later.
At least I got interest for the delay.