It never really crossed my mind as a concern. The first month post-op, I basically did nothing but dilate, sitz baths, douche, and nap.

But after that, it rapidly got easier. And I was still recovering from surgery for that first month, so I didn't expect to have much energy or time left over regardless. It was an intense time, but I don't regret a relatively brief period spend devoted to post-op care compared to the rest of my life.
I'm now down to dilating once every few months for ~20 minutes with the biggest dilator. (I got there by following the same surgeon's rules I did to gradually taper down from once a day to once a week, which tapering the surgeon did recommend - if there's no loss of depth or added tightness, there's no issue. If I found it was uncomfortable, I increased the frequency back to where I was. Over the past year or so, I went from once a month to this, and I've maintained my depth just fine. I'm coming up on 5 years post-op.) I was absolutely scrupulous about maintaining the schedule for the first three years, mind you, which I'm sure helped in the long run.