Stock Android pushes a Google account really hard, but you can technically avoid it. You won’t be able to download any apps from the Playstore until you sign into a Google account, BUT you can download F-Droid from a web browser, and from F-Droid you can download Aroura Store, and get all of your Playstore apps from there.
Or you can just use a degoogled ROM instead, which makes it a lot easier to avoid the Google account by default.