@Randall Sorry to hear about your issues. It was a similar thing for me. Whilst I'd never really been able to stay dry due to a mixture of factors (after dribble and urge issues, lack of interoceptive awareness due to my autism) and IBS was becoming more and more of an issue, constant floods were not the norm and, short of IBS flareups, I could get by with wearing pullups and relatively thin nappies under regular underwear when working. Plus, whilst I needed protection, big floods weren't the norm and because I was still able to wear regular underwear over the top, it just felt like some added protection rather than a replacement.
Then my bladder control lessened a huge amount pretty much overnight thanks to the sudden onset of neurological issues caused by Long Covid and it felt like a completely different ballgame psychologically. Couldn't hold it in for any amount of time and once I started going couldn't stop. Thinner more discreet products were out and in came bulky, plastic-backed products 24/7 which replaced my underwear completely and I'd get through 3-4 nappies a day rather than one or two. It's been that way for a year and a half now. Still fighting to get some treatment.
I can relate to the work stuff but it is doable, with the right clothing choices no one will bat and eyelid. Get trousers 1 or 2 sizes up and it offers better concealment and re the noise, with all the ambient noise in a workplace it isn't too noticeable. I've been in thick nappies for a year and a half and no one's said anything. It's a real pain though and a constant source of anxiety. The fact I'm in a wheelchair these days actually probably helps with that.
I'd say nowadays concealment isn't my main annoyance - it's more skin issues and the cost of products in addition to the awkwardness of changing out and about. Given how inaccessible a lot of accessible toilets are, it's often a lot of pain and discomfort. Due to the wheelchair, I often don't have enough space to lie on the floor.