TL : DR As a new player should I level a DPS first to go through the upper end dungeons to learn them before trying to tank?

I have played FF XIV off and on for the last couple years but never got past level 40ish because of various RL reasons.

I am looking to get heavy into the game this time and have always played as a tank (in all MMOs including this one).

Mechanics wise I feel comfortable, as I always watch videos/read guides before entering a dungeon for the first time. I even announce when I first enter that it is my first time and feedback is more than welcome.

My main question is, I keep hearing about how toxic the Party Finder can be in the late game. Should I be leveling a DPS first to experience the dungeon mechanics, and party quirks. Sometimes it becomes the norm to skip some bosses, or avoid clearing areas that you can bypass .. people get SO upset when you try and do a full clear, or kill something that could have been skipped.