I've tried CPAP twice since the 90s and never found it made much difference in following day wakefulness (it did stop snoring which my wife at the time appreciated).
But, as I age, I try to keep an eye on things and was recently diagnosed with a level of apnea more serious than the earlier tests (70 year old otherwise healthy male).
My NP told me that her experience with the Inspire device was not altogether positive. Like any medical appliance it may not work for everyone and indeed it didn't seem to help some of her patients. And any time you have to do even minor surgery there is a risk. Not all apnea sufferers are "qualified" for the device. Your level of apnea-hypopnea index (AHI) must exceed a certain threshold, and if you have a pacemaker it is not an option.
I agreed to try a CPAP machine for the third time. Over the years they have improved the experience but I still don't like having that thing on my head and being tethered to the machine. I quit using my third, most recent, machine within two months of starting. I don't think there was any significant improvement in sleep quality or decrease in daytime sleepiness. At 70 I can take an afternoon nap if I damn well please.
I have had some level of apnea for many decades now. My recent heart work-up showed no problems. At 70 I have memory lapses but nothing unusual for my age. Ultimately, even though I quit using the CPAP I also decided not to bother with the Inspire.
Personally, but without any real evidence, I am suspicious of the whole CPAP industry. CPAP devices are a multi-billion dollar business and I wonder if there is pressure to over-diagnose and over-prescribe.
One final word: She told me that if one does not find the Inspire useful it stays in your chest. Absent any other complications they just leave it in there and you just don't turn it on when you go to bed.
I hope you find a livable solution!