I'll go with "it depends," especially regarding what inspires you, and share some of my experience.
I have tried quite a few PRS guitars over the years, but the only one I've owned so far is a 2008 Mira. I see it often called a "Core" guitar now, to differentiate it from the later S2 and SE versions, but I don't know if that's quite accurate. It is a bit more utilitarian and considerably less visually striking than most Core guitars, but it does play astoundingly well.
Its playing so well is why it has become my favorite, most used electric. Once I got over the imposter syndrome of being able to play things on it that I struggled with on other guitars, I noticed I was playing longer and better working out issues. And with its clarity I better hear mistakes and can correct them (I can use the tone and volume to darken the tone, though).
Most importantly, it inspires me to try new ideas and experiment. So in that respect, it has definitely helped my playing and brought more enjoyment.
It also helped me get over GAS and constantly buying, and I haven't bought a guitar since getting it and even recently sold a few, but there were a few reasons for that. (I've looked at others, though, especially with the empty space in my rack now.)
That said, I have also experienced a high-end guitar not really improving playing. The most I've spent on a guitar was for a Collings OM1 acoustic. It was beautifully made, very visually striking, with a loud, clear, responsive tone. But after the honeymoon phase I rarely played it. One issue was being afraid to ding it, another was ownership guilt, but mostly was the more practical reason of its being so loud and bright that playing it in a small room set off my tinnitus. And its sound, as wonderful as it was, didn't quite match the one in my head as well as my mellower, much less expensive all sapele guitar (a Martin 000-15). So as nice as the Collings was, it wasn't the right choice for me.
Thus, simply having a high-end guitar won't necessarily make you better; it still has to be the right instrument for your playing, progress, and inspiration. But when you find one that is, it's astounding.