I agree that getting a dog to force you to walk is risky - but, also it depends, I’ll walk dogs, really enjoy it, but will rarely walk if I’m between dogs.., it’s boring 😂 but you kind of have to know yourself whether you’ll enjoy it because you have a dog or resent having to do it for the dog.
The much bigger flaw is you trying to pick a breed tbh, because that means you’d be looking for a puppy - puppies can be really hard work, emotionally and physically, you’ll be rushing in and out of the house and scrubbing floors for at least a few weeks, often longer, having to do extra housework to make sure there’s nothing lying about that they shouldn’t have, potentially being up through the night with it.
Also you can’t walk them at all for the first couple of months - they do need to be out and about but they can’t touch the ground, then for a few months after that it’s not really exercise you’re getting because every walk is a training outing rather than a real walk. So if the main driver for getting one is the walking that’s a good roughly 6 months before you’re close to anything like getting an actual walk in for you.
If you have a proper long think about whether you will actually enjoy the walking and decide you’re still up for a dog, I’d recommend forgetting about breed altogether and going for an adult rescue - and be very realistic about what you can cope with in terms of exercise and training