I'm an engineer from a family full of hardcore engineers. Our work and entertainment is heavily entangled with the sciences and so on. Without disclosing too much personal information, I'm involved in software moreso, but the extended family I speak of is pretty close. Altogether, my family has worked on damn near every sort of engineering across all kinds of projects; construction, aircraft (aeronautics) [civilian and military], automotive, circuit boards/electronics, lighting, electric wiring, communications, and I'm sure plenty of more they've been less able to disclose.

One thing that unites just about all of this work is physics. None of this engineering would be possible without a pretty deep understanding of the laws of physics as they are widely understood; kinaesthetics, thermodynamics, electrics, aeronautics, etc. are all crucial in these fields. For example, without a detailed understanding of the behavior of electricity, no complex circuits could be designed. Without thermodynamics, machinery or constructions would overheat, crack, combust, etc. because they would improperly or inefficiently handle temperature changes. Without understandings of rotational properties (kinaesthetics), engines would destroy themselves and not function properly. Without aeronautics, aircraft wings wouldn't generate the right lift, propellers wouldn't propel, and so on. These are just small examples of where an accurate understanding of physics is necessary.

Now, these same laws of physics are the ones which dictate the necessity of round earth. But that isn't all of it.

Many of these relatives have done jobs that specifically pertain to round earth. One of my older relatives (sadly no longer with us) worked on (military) aircraft as far back as the Korean war. Others have worked on more recent aircraft. This would have involved a lot of things, including/especially the navigational systems, which would be different between flat or round earth.

Some have worked in navigational systems outside of that. Again, the details of such navigational systems depend greatly on whether or not the earth is a spheroid.

I'm sure there have been other projects. Given some of the companies they've worked for, I'm especially inclined to believe that.

None of these individuals are by any means left wing or satanic or anything but hard working God loving Americans that want to keep it great (or make it great again). They all find the concept of flat earth rather preposterous, because of just how much would have to be different or changed or non-functional for the earth to be flat. Very little of what we do, know, work on, enjoy as hobbies, etc. would work the way it does if the earth were actually flat.

Many are space enthusiasts, on top of that all; far more than your casual "huh let me watch rocket go vroom" folks, people that might even go so far as to run the moon landing calculations purely for fun. The entirety of flat earth theory runs so diametrically in opposition to everything known about space travel, orbital mechanics, and, by extension, physics, that there would be glaring errors across all of it, from the math and concepts of the space travel to the functioning of a propeller.

To many of us, "round earth" is just as much an obvious and regularly encountered fact as the sky looking blue or the fingers on our hands.

Is it possible the earth is flat? Anything is possible. The mountain of proof that would need to be provided, the volume of counter-explanations for each difference or discrepancy in physics and so on, all of that, would be astronomical. I've never seen any such explanations or justifications, only highly surface level or circumstantial flawed arguments. Extraordinary claims require extraordinary proofs. I've seen those proofs for many things, especially Q stuff (or the "awakening" as you call it). I've never seen those kinds of proofs to totally dismantle and replace general physics or globular earth.