Does anyone else get the issue where you are unable to delete characters or words in a Facebook or reddit post.

Firstly, I should say that I’m using the latest version of iOS although this problem has existed in previous versions, with voice-over.
My problem is that when posting to Facebook or reddit, I can go back to edit it by adding more words, but I can’t delete characters or words in the text field.
This makes it quite difficult to use Facebook since I can’t go back and edit out misspellings or incorrect words, which is happening more frequently due to iOS dictation not picking up my words properly.
It also seems to be arbitrary, sometimes when I log in I can delete words but other times I can’t, and reloading the page does nothing.
It’s a shame because I really enjoy posting to social media, but it’s become a lot more difficult.
Does anyone else have this problem, and if so, how do you deal with it?ea