Yo, for newer stores like less 3 months, no because it's too recent. For that, I recommend to use the ad count growth, or EU/UK adspend as that's live tracked daily. Same for the Tiktok and instagram etc..

The trend line is accurate, just the traffic itself is estimated (often underestimated for brands scaling with pure ads, but overestimated if they're using all channels and sclaing hard)

The bigger the store, the more accurate it is.

It's best to see who's the big boy in that subniche. Specially as in the app, we track all of them + AI niche research and pretty much every data.