Usually, yes. A well landscaped garden will have clever features to negate some of the most fiddly gardening jobs. Edgings for example keep gravel where it should be and stop your lawn encroaching into your flower beds.
Good choices of materials and tricks like sealing porous pavers will avoid stains – but you will still need to sweep your patios and paths from time to time.
Use of mulch will keep weeds at bay and your landscaper can advise on lower maintenance planting schemes. He or she can also install automatic irrigation systems to save you having to water your garden.
Talk to your garden designer and your landscaper about the levels of maintenance you can manage for your new garden.