Choosing which transposable element annotation to use for analysis

Question

[rejflstrasni]

Hello, I would love some help with figuring out TE annotations. I'm trying to analyse expression of TEs in bulk RNA- seq data and have come up with a challenge. After converting all the Fbgn to symbols, the TEs seem to have two different annotations? There's ones annotated with Fbti but also in the format like RRxxxxx_transposable_element from RepeatMasker. How do I know which one to analyse? Thanks so much for the help!!