A tidy garden can still look unfinished. Usually it's the edges.
Lawn works its way into the beds. Mulch and gravel spill onto the path. You re-cut the same edge every few weeks and it still looks soft. Meanwhile the patio sits in full sun and the outdoor setting goes unused all summer.
Both are fixable in an afternoon, with no concrete and no trade quote. The products already exist — they are just usually sold to landscapers, in trade quantities, with specifications written for people who install them every day.