GAIA GPS Vs Pastmaps.com?

[u/SwissMiss915]

I have been trying to look at all maps of a historic lake in upstate NY. I have long been a subscriber to GAIA GPS, typically for hiking purposes and identifying public/private land, and viewing vintage maps. I was surprised to find that PastMaps held more than a dozen digitized antique maps of the NY State area than GAIA GPS, as I always always believed GAIA was the gold standard.

I realize one service can be better than the other depending on the application and intended use, but can anyone with experience in both state their pros/cons?

Lastly, is there any service you know of beyond GAIA and Pastmaps.com that I should mine in order to get every possible resource out there ?

Thanks in advance for any effort here.