So I am noticing that a lot of the professionals out there show triangles rather than polygons. I understand that one polygon is made up of two triangles, and I know that game engines deal with tris better than polygons. Therefore, what happens in the modeling process when modeling in polygons then ending up in triangles.…
The model gets triangulated anyways at the end of the day by the exporter/engine. Always better to triangulate the model yourself before export so you have more control of where the splits happen. Also a polygon can have more than two sides, normally referred to as a N-Gon once the polygon exceeds four edges.