Don't know about easy but their JS lib doing this is quite good:

https://github.com/fingerprintjs/fingerprintjs

Honestly surprised to see it licensed as MIT now too. It was something less permissive before. They aren't doing anything too crazy, more like being the first ones to be open about it.

I couldn't imagine what else companies like Google or Meta or TikTok can extract out of it that no one else can't. Integrations aren't exactly hard to make, quality is hard yes, but making half assed plumbing is sufficient too.

Those advertisers benefit from monopolistic markets with zero regulation while owning the platforms they sell advertising on that requires their explicit malware in order to use, what is unique about their finger printing versus what fingerprintjs provides?