There’s no option for that. Deactivate was the only one there.
Discussion
Maybe Canadian Twitter is different , I had 2 options deactivate and delete. Should be 1 page back from your first screenshot
I only had the deactivate option as well. Sounds like if you leave it in this stage, then after 30 days it’s officially deleted.
Sorry I missed this one last night in the barrage of notifications we were all getting 😂 I actually wonder if it is different by country, like depending on local privacy/internet laws. Could be