Hi Becky,
I had the surgery for diverticulitis in 2021. Never got my former life back , but I don’t have constipation.
I take 1 capful of Miralax daily with yogurt or juice. I also take 1 capful of Sunfiber in my coffee ( or any liquid)sun fiber is available on Amazon and miralax has cheaper generic at Costco
I also use a quarry potty and Toto bidet attachment on my toilet as I now poop very frequently. I have a GI dietician and follow a low FODMAP diet.
This is I think the best I can hope for and manage as
The surgery left me very bloated and distended.
I feel your pain!!