Should I replace a laptop with 8GB of soldered RAM?

Yes. Replace the laptop. That Ideapad 330 has no RAM slots, so you’re stuck at 8GB — and even light multitasking (Chrome, Slack, video call) will push it into swapping. The Ryzen 5 2500U is also three generations behind. A $500–$600 laptop with 16GB and a newer CPU will feel dramatically faster. Soldered RAM means no upgrade path; don’t waste money or patience trying to work around it.