CheckpointText.cs

using System;
using System.Collections;
using TMPro;
using UnityEngine;

public class CheckpointText : MonoBehaviour
{
    private TextMeshProUGUI tmText;
    private Animator animator;

    [SerializeField]
    private float duration = 2f;

    public static CheckpointText Instance { get; private set; }

    private void Awake()
    {
        Instance = this;
        tmText = GetComponent<TMPro.TextMeshProUGUI>();
        animator = GetComponent<Animator>();
    }

    public void ShowCheckpointText(string checkpointText)
    {
        StartCoroutine(ShowCheckpointTextAsync(checkpointText));
    }

    private IEnumerator ShowCheckpointTextAsync(string checkpointText)
    {
        tmText.text = checkpointText;
        animator.SetBool("Visible", true);
        yield return new WaitForSeconds(duration);
        animator.SetBool("Visible", false);
    }
}