There most likely isn't these days. However, it's only an issue if you use a lot of apps simultaneously and/or VMs. From your usecase, it seems like even if the iGPU reserves 2 GB, 14 GB will be more than enough for you.
I had a Ryzen 3500U laptop with 8 GB RAM with ~1.5 GB reserved and never had any issue in day to day usage, which involved browsing, videos, and some coding in VS code with, at times, both Django dev server and npm dev server running simultaneously. Later I upgraded this laptop to 12 GB RAM just because my wife was also using it and at times, we both left our users logged in, resulting in lots of running apps in the background. Now we both use it without any memory issues whatsoever.
Also, if you're planning to use graphics designing kind of stuff like Photoshop, Blender, etc., then those apps, while RAM hungry, will benefit more from Ryzen's powerful iGPU than from an extra gig of RAM, especially after sacrificing some performance on an i5. In day to day use, Ryzen 5 is clearly faster than i5.
One advice though, if you're going to be travelling a lot with this laptop, maybe to college and back regularly, make sure it has a good build quality. Try to find a store nearby and take a look at the actual laptop before ordering it online.