On Android, desktop and in web version of Telegram there is a Delete command on peer info screen. On iOS there is no such option. I think it should be added. There are buttons to leave channel or group, but no option to delete chat with user or bot.
Now chats only can be deleted using swipe gesture or using long press in chat list to popup context menu. But swipe may not always work good when there are chat folders, because swiping switches between them instead of revealing delete option. Long press is not the best option from accessibility point of view. It would be easier if it were available using just simple taps. As it already is on other platforms.
On Android, desktop and in web version of Telegram there is a Delete command on peer info screen. On iOS there is no such option. I think it should be added. There are buttons to leave channel or group, but no option to delete chat with user or bot.
Now chats only can be deleted using swipe gesture or using long press in chat list to popup context menu. But swipe may not always work good when there are chat folders, because swiping switches between them instead of revealing delete option. Long press is not the best option from accessibility point of view. It would be easier if it were available using just simple taps. As it already is on other platforms.