Is it appropriate that the ONLY strategy to have Messages absolutely sync throughout Apple gadgets, is, to have iCloud turned on for Messages on all of them?

At present, Messages mainly doesn’t work throughout my numerous laptops, iPhone, iPads.

When somebody texts me (whatever the mode of the textual content .. sms, and so forth) the message fairly randomly seems on usually simply one among my gadgets, sometimes on a couple of on the identical time, or sometimes on a couple of however solely showing with lengthy durations of time between appearances (usually days or perhaps weeks).

(I’ve been making an attempt to work out the sample, is it one thing like “the gadget that’s turned on will solely get the message” or “the gadget on mobile will solely get it versus a tool on WiFi” – or some sample I can’t decide.)

TBC usually and for years each single time I get (any form of) message on Messages app – its message would pop up, immediately, abruptly, on all gadgets.

I’m making an attempt to not use iCloud and certainly I’ve turned off iCloud for Messages (so far as I do know, on all of my gadgets). I did learn someplace that, certainly (and that is completely weird) iCloud is certainly the sync mechanism for Message app.

• I actually cannot discover any data on this. I might have thought there can be 10s of hundreds of thousands of individuals screaming about how Messages app primarily would not work any extra and messages do not seem and so forth.
• Is it in actual fact the case that you should have iCloud turned on (what, on each gadget, or?) to make Messages app sync?