I really like the Assimil method of learning. I find it is more organic than Duolingo or flashcards. It makes you more proficient in conversation early than learning a whole lot of vocabulary.
My uni also offered a Dutch course with a similar style to Assimil. Loved learning it, although it is quite similar to German so it was actually super easy. No offence to you Dutch folk, but the way you pronounce your G is just terrible. xD
I am planning to buy a Deck when I can afford it. I've been a PC player all my life but this is going to be my way of supporting Valve for all the good things they have done for Linux gaming. I mostly play Paradox strategy games, so I'm not sure how that will work on the Deck without a mouse. But maybe Terraria and Stardew Valley might be playable using controller style keys.