Changing UI language while in Netflix

Hello all!
Installed language reactor today. When in Netflix, the extensions language is automatically set to german. By language I mean the language of the UI, all of the options are in German. This would be fine if it was only the options menu but it also affects the ‘dictionary’ thing (when i click on a word for its meaning), as that shows up in German too. I notice that in the website you’re able to change the UI language to whatever you want, how come i cant do that on the app?

I suspect that this is because i have my computers language set to German but theres the issue. I want to keep it to german because that way i passively pick up new words, and if i switch to english im missing out on a ton of stuff thats useful to me personally. This is why i want to change the UI language. I want to make it clear i dont mean the subtitle language or the voiceover language on netflix.

Many thanks! (Danke schön)