Definitely don’t do this, regardless of what you may have read elsewhere on the internet. Make it an easy transaction instead of coming off as someone intentionally being evasive/deceptive or just someone plain indecisive.
Every other nuance of contacting dealers has been discussed in detail many times on the forum.
For example
And sometimes you need to get on the phone too. Use Google Voice which you can turn forwarding to your real number on/off at will.