Domain matching search terms

I know Google stoped ranking based on matching search keywords a while ago but I imagine there is still some benefit to match search queries.

CONTEXT

Let's imagine I am building an app about let's say tables in Brazil. Looking at the Google search keywords I found that many people in Brazil search for e table.

Purchased a hypothetical domain, e-table br

Now colloquially, in Brazil, they call "e-table" a government service related to tables. The government site is gov br/ table (not e), has a domain authority of 80 and everyone knows it as e-table.

There are other competitors or similar services that are called e-table, etables etc with .br or .com much newer and way less dominant than the government site.

Searching on a clean incognito window for e table it shows the government site but also the competitors (so google does not yet? think of it as a navigational query?)

QUESTION

Does it make sense to base my SEO on this domain? I believe I can "win" the other competitors/similar services but NOT the government (which is fine, as it's a different service)

I think the problem might not be domain authority but rather confusion with so many similar services..

But on the other hand it's much easier to stand out by having a clear copy and value proposition than to generate search traffic on a less known term.

Thoughts?