Google Tag Manager Interfere With Meta Pixel Integration Business Plan

Hello guys, 

I would like to setup a google tag manager trigger to fire a Facebook / Meta Pixel lead tag on a button on my website.

Just to be more clear as to what I'm trying to do:

1. User coming from a Facebook ad lands on my landing page.
2. User clicks button on the landing page that leads them out of the site to a Whatsapp conversation
3. Once they click this button a google tag manager trigger is fired which in turn fires a lead tag to the facebook pixel

First of all, I would like to know two things:

1. Can it be done?
2. Most importantly, will it interfere with Squarespace's native Facebook pixel integration?

Would love to hear any thoughts you guys might have on this matter.

Best regards.