Dual SIM setup question

[BwanaBing]

Hi all. I have a Samsung J6 arriving today to replace my work and personal phones as it's a dual SIM phone. I'm a bit confused about something though. I know I can sign in with 2 Google accounts but when I import my contact from both Google accounts on to the phone, will it just lump them all together in to one lot of contacts or can I keep the 2 sets of contacts lists separate? If it lumps them all together, do you know of any apps that will keep them separate?

Thanks for reading.