Based on my personal experience with Kaiser and their home fecal test (FIT test) as a cheaper screening method, I suggest opting out of it and insisting on a colonoscopy.
The problem is that the fecal tests are totally inconclusive. Every positive test must be confirmed by a colonoscopy. And then you get into tricky waters with insurance. My Kaiser gastro doc insisted that my colonoscopy after a positive home FIT test would be billed as diagnostic and not covered at no charge as preventive screening. Which means I would pay over $2k. Despite the USPSTF publishing explicit guidance on this exact scenario still being screening. He was dead wrong, and I wasn't billed, but he and his department did everything they could to discourage me from following up with a colonoscopy.
And at one point he even turned the tables around on me and said this was all a consequence of my having opted for the FIT test instead of a colonoscopy. Which I never did, I was not given a choice. But from his statement I would assume that you can opt in to colonoscopy instead at Kaiser. Then again this could be yet another piece of misinformation on his part.
Kaiser has some very opinionated beliefs that their medical leadership pushes. From my partner's T2D issue (from no history to an ICU stay with DKA): "You cannot go into remission with T2D". "You will need to keep your A1C between 6 and 8 otherwise you will have issues with the medications you are on". They also have many medications they will not prescribe, regardless of the reason.
And don't start me on their pharmacy. She had root canals with some infection, and was in substantial pain. Dentist prescribes short term pain meds between procedures - she's in agony. I drive her from dentist to the Kaiser pharmacy at their UC/ER-lite/whatever facility, that I know from my previous work as a paramedic has pain management medications on site (day surgery, etc.)
"This is a pain management prescription. We do not fill those in person. You will need to submit it to our mail order." "How long will that take?" "5-7 business days, and then shipping time."
"Oh, look at you, coming from the dentist with verifiable surgical procedures done and in pain - just in case you might be drug seeking, you can hang on for a week or two and get your pain management then."
That last one is, I'd argue unethical and against most pharmacists "oaths".