Indeed, not a specific field for it. That’s why people use the body of the post (the part where one would write an essay if they did a text post) for it.
Here’s what I see when I tap the above image (with the alt text I added) in Voyager:
And here’s the MarkDown I wrote to accomplish that:

Here’s what I see when I tap the above image (with the alt text I added) in Voyager:

How can blind people read the meme text in photos bro?
You can use the body for alt text, Sussy Susserton.
There is no client support for alt text field in photos.
Indeed, not a specific field for it. That’s why people use the body of the post (the part where one would write an essay if they did a text post) for it.
The body is not shown without clicking.
Easy accessibility is always a necessity.
It is on all clients I’ve used.
Here’s what I see when I tap the above image (with the alt text I added) in Voyager:
And here’s the MarkDown I wrote to accomplish that: