You also don't always see what the veteran TMs are doing. They could have started their day by back stocking, or even finishing pushing, yesterday’s truck. Maybe they pulled your OFO batch? They might even have jumped into price change or set SPLs. There is often more expected from the long term TMs and you aren’t always going to have the visibility to see that.
BUT. If you think walkie etiquette should be covered by your peer trainer let you leader or HR know, that’s actually helpful information. Also if there is something you felt was glossed over in your training let them know that too, that you’d like to learn whichever process better to get skilled up in it. Remember you have to Use Your Tools, this includes your training and development. Nobody on your team is a mind reader and knows what your struggles are if you don’t tell them. Advocate for yourself!