Is it possible to find my iPad if it’s not linked to my phone anymore

Here is Apple’s advice for lost or stolen devices:

If your iPhone, iPad or iPod touch is lost or stolen – Apple Support

Use the Find My app to locate a lost or stolen device – Apple Support

Facilities to manage/recover a lost or stolen device are predicated on Find My iPad being enabled on the device before it was lost.

If the FindMy app was not setup/activated on the iPad, then no.

And if your iPad is no longer linked in other ways to your iPhone, then no.

Sorry.