When my iPhone was new I noticed that I couldn't send messages to phones which only accept SMS messages. Therefore I enabled the setting "Send as SMS" in Settings > Messages and that solved the problem.
Recently when I sent a group message to a few people, all having smartphones and one having an Android phone, they all got the message as an individual message which was not my intention. My conclusion is that the message was sent as an SMS to everyone. My question is basically: What settings do I need to be able to send SMS when required and being able to send group messages as MMS or iMessage?
I use iOS version 16.3.1.
Here are my current settings related to message formats: