I'd like to know if ebooks bought on Google Play are always encumbered with DRM, even when the publisher is selling them in a DRM-free version1. As an example, Newton Compton, an italian publisher, sells all of its ebooks in a DRM-free format (they just use a watermark).
As an example, let's take one of their books, Artemis by Andy Weir. They sell it DRM-free on their site, and also other stores respect this choice from the publisher, like IBS, Kobo, Bookrepublic, and surely others.
On Google Play it is instead listed as being protected with DRM, but it is not specified if this refers to the watermark or if they apply the hard Adobe DRM.
I usually buy from other sources, but I've received a coupon and I'd like to know what I will get if I buy from here.
1. In this context, when I speak of DRM, I am referring to the hard types, like Adobe DRM, and not about the soft ones, like the simple watermarks that don't cause any technical difficulties when trying to open and access them.