Hello! In the next few days I'm going to buy my first flashcard for my 3ds. I've been reading about this gateway-bricking-3ds thing, and since every single post or news dates back to 2015, I was wondering if the bricking thing is still a major problem. By the way, what I'm intended to buy is the official gateway card, no clones, but I was worried of bricking my console even with the original card (I've heard of people getting their console bricked even with the official card). Thanks everyone!
No Gateway user has been bricked from the brick code since they fixed the bug that was causing the bricks shortly after they first introduced the brick code. Nowadays it's only bricking DSTWO+ users, so just don't get a DSTWO+ (or use SuperCard's "freegame" CFW with DSTWO+ which won't brick you)
Being on 10.7, I think I'll go for the sky3ds+, being easier to install and use and stuff (don't wanna lose my warranty with a CFW) . Thanks everyone for the accurate answers!
Losing your warranty is the last thing you should be worried about, you'll only lose your warranty if they find out that you modded it, which will be hard since A9LH has brick protection so you can recover from any type of soft brick and a fully bricked console won't even boot so they won't be able to find out that you have A9LH installed on it, but if you're still worried about that, use menuhax + emuNAND so your system stays unmodified and all the hacks reside entirely on the SD card.
There's even less point in a Sky3DS+ than a Gateway, it costs more, does less, and is a hassle to use with the buttons, though admittedly that got a lot better with the + version where they added a second button so you don't have to cycle through the entire list to go backwards.
At this point the best is to just stick with CFW which doesn't cost you a thing, and use tools like tikShop or encTitleKeysUpdater + FreeShop to get your games easily.