Can anyone with an Iphone find my airtag?

If the tag is traveling with them, they will get an alert.

If the item is found by someone, and it has an AirTag, they can hold it near their phone to see if there is contact information.

What to do if you get an alert that an AirTag, Find My network accessory, or set of AirPods is with you - Apple Support

But, no. Not anyone can just find your AirTag, there is no general alert sent out.

We cannot see random airtags via the find my network. But, If someone elses airtag should get in my bag, it will play a sound to let itself hear, to prevent stalking via airtags.

Also, if you find my bag, with my airtag attached, you can hold your phone next to the airtag an you will see my phone number, so that you can notify me that you have found my bag. Further, there is nothing else to add