When can I expect a response from the landlord?

Hello,

We viewed an apartment on February 15, 2024, and immediately made it clear during the viewing that we liked it. On February 19, 2024, the landlord wrote to us again regarding a few questions.

We responded and haven't heard from him since.
We only contact each other via email, so we don't have a phone number.

Is it normal to wait so long for an acceptance or rejection?

Should we ask now or is it still too early?

LG and thank you for your answers/help