var image = document.querySelector(".image");
image.style.display = "none";
setTimeout(() => {
    image.style.display = "block";
}, 3000);

.image-container {
  width: 350px;
  min-width: 350px;
  height: 250px;
  min-height: 250px;
  border: 1px solid red;
}

.image { 
  width: 350px;
  min-width: 350px;
  height: 250px;
  min-height: 250px;
}

 <h2 class="before">This is text before</h2>
 <div class="image-container">
  <img class="image" src="https://images2.minutemediacdn.com/image/fetch/w_850,h_560,c_fill,g_auto,f_auto/https%3A%2F%2Fwinteriscoming.net%2Ffiles%2F2021%2F11%2FCaraxes-850x560.jpeg" alt="">
 </div>
 <h2 class="after">This is text after</h2>