No problem
I would say if you have a modern gas boiler, on mains gas and in good working order, now is not the time. Even when your current boiler comes up for replacement you might find we’ve switched to a hybrid methane-hydrogen mains gas network that will allow you to continue with most of your present installation.
My gut feeling is that beyond a certain date all new build houses are going to be compelled to be all electric, for cooking as well as heating, and that heat pumps will be mandated, but for a variety of reasons it will be a long, long time before they become very widespread on older housing stock. I should add, despite the house construction our next door neighbours installed an air-source heat pump about a year before we sold and moved on, and they opted to sacrifice a little internal living space in order to do the necessary insulation (building the walls in rather than out, given the difficulty of doing anything with the timber shiplap exterior wall). I never heard their unit operate, but it wasn’t exactly right under our noses and I did note that they had it placed as far from their house as possible, presumably at the installer’s suggestion. So yes, in confined urban spaces noise could be an issue.