Well, make sure that you are nothing but charitable in your own behavior.
I used to attend a TLM parish. And while I loved it, there were some Catholics there that I thought of as “fundamentalist Catholics”. (Never called them that to their face, though, good manners are important! LOL)
These were the Catholics that walked as if they had a poker shoved up their rear, and always had a look of disgust when speaking of “NO Catholics”. They had rigid rules regarding dress and women’s roles, and didn’t hesitate to share them. (If you’ve never attended a parish where a self-appointed “Marylike Modesty” squared decided to “correct” all the improperly dressed women, then you’re lucky.)
When they were “forced” to attend the NO, many of them abused the NO rubrics because they weren’t “traditional” enough - doing things like kneeling during the Sign of Peace in order to avoid shaking hands with anyone, reading the TLM missal instead of the NO one, etc.
Their whole demeanor towards the NO and “NO Catholics” was one of disdain.
From your post, it doesn’t appear as if you are like that - but lack of charity can certainly go both ways, so make sure that you never give the impression that you consider the NO and the Catholics that attend it* as a matter of preference* inferior.