The title of the post can not be seen when viewing the thumbnail from the mobile

Hello, I visualize the posts related to thumbnails.
From the PC, when you pass the mouse over the images, you see the title:
https://my.pcloud.com/publink/show?code=XZSbB97ZIFwAaD2fGXYD0qktcElaKXDfm8cy

But from the mobile, only the images are seen, the text does not appear, so it is difficult that by the image you can sometimes get an idea of what the post consists of…
https://my.pcloud.com/publink/show?code=XZRbB97ZLxjHPTL2sepXRXTy9jr59VV3ctAX

If you click on the image, obviously you go to the other post.
If you keep your finger pressed, the text appears the text of the title, but it is badly sized and the opening menu: opens in a new tab etc …
https://my.pcloud.com/publink/show?code=XZamB97Zfchw4iOc5rQ0HXYH7dwGPyDy5WgX

Is there something I’m doing wrong? Or could the title text always appear, inside the image or below?

Thanks,
Sergio