Ehh ok. That doesn't have anything to do with what I said. I said that the switch has been up every week this year according to the Famitsu threads, as in each week has been up compared to the corresponding week last year. Either a mistake has been made here or in the Famitsu threads.
Here's the chart from the Famitsu threads. Obviously the first week is week 53 here but the 2nd week is also up which would be week 1 here.
That's the point, you have to check the date as they are comparing different time periods, Famistu week 1 is comparing w/e 5th Jan 2020 with w/e 3rd Jan 2021
VGC first of all ends the week on Saturday instead of Sunday, and the week ending 2nd Jan is counted as the last week of 2020.... thus VGC "week 1" is comparing w/e 4th Jan 2020 with w/e 9th Jan 2021
In this particular case the Famitsu comparison is comparing much closer weeks, only 2 days skewed instead of 5... this is inevitable as for charting purposes the weeks sales are essentially treated as a point in time (obviously in real life that's not the case, sales will vary by day/hour/minute)
It can't be perfect (in some transition years it might be Famitsu comparing weeks that can be skewed up to 6 days out of alignment) but if you compare more closely aligned VGC weeks the the Switch is up 2021 compared to 2020 here too.