defrain-shooter-unity/Assets/Scripts/DebugCanvas.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using TMPro;
public class DebugCanvas : MonoBehaviour
{
    public TextMeshProUGUI DebugTextGrounded;
    public GameObject Player;
    public TextMeshProUGUI fpsText;
    public float deltaTime;

    private void Update()
    {
        DebugTextGrounded.text = "isGrounded: " + Player.GetComponent<PlayerController>().isGrounded.ToString();

        deltaTime += (Time.deltaTime - deltaTime) * 0.1f;
        float fps = 1.0f / deltaTime;
        fpsText.text = Mathf.Ceil(fps).ToString() + "FPS";
    }
}