Well most times it is pretty likely. My main plate/psuedo gf however may be an exception. I can't remember a single time she has ever checked her phone when we are together. She is also extremely busy at work and is pretty high up in her position and in zoom meetings all day so I am pretty confident she is not like this. She even has told me that she puts her phone in a different room at times so as not to be distracted.How likely is it that she's BS'ing? What girl doesn't check her phone 200 times per day?
But she is the exception not the norm.
The bigger question you need to be asking is why are you so hung up on this one woman who you have never even been on a date with or met?
So what, go match with 20 more, set up dates with 10 and bang 5. That's how it works...through volume. Not by messaging one person and then trying to figure out how to make it work with them.