Hello, I just created an account an hour ago and I would like to know if there’s a way to set the cards to display furigana all the time for the 10k / JLPT decks, I read some old posts, but didn’t find a proper answer. Thank you 
Hi and welcome! 
In regards to the 10k, the short answer to your question is no.
One of the overall goals of the deck is to learn the readings for the respective kanji vocabulary and providing furigana would spoil this.
Understandably this can be frustrating for a beginner so I would recommend using the Genki deck in that case. It has furigana activated since it’s essentially a beginner deck.
Oh, makes sense, the way I learned Japanese I got into N3 level in speaking without learning kanji, I started wanikani about a month ago and wanted to keep learning words even if I learned the kanji for them later, so the genki decks are not useful for me.
Thanks for the answer
You could also try these decks since you are already an intermediate. It would give you plenty to work with while you are learning your kanji.
They focus on commonly kana vocab and katakana vocab respectively. The kana vocab deck is directly pulled from the 10k.