This is malware behaviour and I don't think calling it that is an exaggeration.
I don't use any Adobe applications myself but somebody else on my home network does and I can tell you, Adobe app telemetry is very noisy.
Adobe telemetry domains like the following are amongst the top blocked by my local pi-hole installation which is using the OISD big list:
adobecorp.data.adobedc.net
aepxlg.adobe.com
hbrt.adobe.com
So this kind of behaviour is to be expected from Adobe but modifying the local hosts file is a new low, even for them.
my thoughts on software telemetry have remained unchanged since 2023 since I wrote this:
https://nullrouted.space/2023/02/16/on-telemetry-in-software/
As far as I know the only major software developer that does software telemetry consent right is Mozilla and the way they do telemetry in Firefox.
While I'm here, I recently found that Discord is using a newish telemetry domain in their desktop application. It doesn't seem to be used in the mobile application (at least not on iOS).
As far as I can tell, the telemetry call only happens at application start.
The domain is dc-telemetry.net. I don't know what kind of telemetry this is being used for.