That’s a reason to get a government to publish a document that says: “We found that Circling is a general term used by multiple organizations and can’t be trademarked because it’s a general term”.
Afterwards if someone tries to hassle you, you can point them to the official government document that says that it’s fine to use Circling however you want.
I’d also note there’s a difference between legal enforcement and ‘expectation of getting hassled’ especially with scrupulous people.
That’s a reason to get a government to publish a document that says: “We found that Circling is a general term used by multiple organizations and can’t be trademarked because it’s a general term”.
Afterwards if someone tries to hassle you, you can point them to the official government document that says that it’s fine to use Circling however you want.