BABA_YAGA/Assets/Scripts/UI/ProfileController.cs

using UnityEngine;
using UnityEngine.UIElements;

namespace UI
{
    public class ProfileController : MonoBehaviour
    {
        private void OnEnable()
        {
            var root = GetComponent<UIDocument>().rootVisualElement;
            root.Q<Button>("btn-close")?.RegisterCallback<ClickEvent>(ev => UIManager.Instance.GoBack());
        }
    }
}