Yeah in DRC French is the 'official' language but you have the other languages that have been there before those demons touched the continent... Lingala is one of them.. its mostly used by people from and around Kinshasa (the capital city) on the West/Northwestern side of the country, most of the Republic of Congo and a few people here and there in Angola but if you head to the east of the country its people out there speaking Swahili more
This is one of the cons of Globalisation I guess.. employers want people that are more diverse which is why its harder for you if you come from a background where English is the only language. I'm just lucky my parents are African so growing up they spoke to me in French before I'd even started speaking English... with Lingala thats an extra but with African languages you really gotta start young. You can still learn languages when you're older but the way they teach shyt like French and Spanish in schools is just.... idk how to explain it but it just aint right like theres no point of having them as modules in schools that you can do for like a semester or whatever because what you learn there isn't gonna help at all when you're in the workforce. Advice to anyone is if you're learning a new language keep at it everyday for like 5 years
Don't even get me started with writing in French