Peterj116, Good you plan ahead for the worst but do expect the best!
During my 1.5 years of total incontinence (now have an artificial sphincter :))) I used a brief for overflow insurance plus a "nighttime" pad inside. When out and about if I needed to change the pad I'd roll the used one up in the new pad's cover and discretely drop it in the men's room trash. At home I had a covered trash can. I never smelled anything and family members I could trust to give me accurate info assured me they detected no smell. (if you react to asparagus with stinky urine you might skip this veg till your flow is controlled)
You're on top of this so get the good sleep you need. We've got your back!
May this be your greatest concern with the PC !