Do you really think so?
I highly doubt it. The .357 SIG was dead in the market for a good 10 years prior to covid, and even when in its prime was only marginally successful. Virtually every manufacturer dropped 357 SIG from their product lineup; SIG doesn't even make 357 SIG guns anymore except for overruns from small contracts for a smattering of agencies; among which, most institutional users of 357 SIG have dropped it (FAMS, USSS, Texas DPS, Tenn. Highway Patrol, etc).
The cartridge was virtually dead in the commercial marketplace for years prior to covid. Even by 2010, finding 357 SIG in readily available numbers/variety on shelves was pretty rare and that even includes Virginia which is one of the last holdouts of 357 SIG. I hardly imagine covid is the reason it flopped.