Is it really that simple?
Yes
Nothing else to worry about or do before/during/after?
You might want to make sure you're on the latest BIOS version prior to adding any ram or storage as an upgrade over your existing hardware.
https://www.dell.com/support/manual...ee520c-b7d7-4df7-bdf2-0369c9a44260&lang=en-us
According to this, your laptop has 2x SO-DIMM slots and the maximum ram supported by said laptop is 32GB's. You should be looking for a 2x16GB DDR4-2400MHz 1.2v SO-DIMM ram kit or two identical sticks of DDR4-2400MHz 1.2v SO-DIMM rams.
If you have access to Amazon, pick this up;
Noticed your edit.
Or any kit from this shortlist;
https://www.newegg.com/p/pl?N=100007609 601204086 601342147&PageSize=96&Order=1
Thanks! That was the kit I wanted but it was out of stock on Newegg. Just ordered from Amazon.
As for the BIOS update, I'm having trouble with that. I am currently running version 1.23.1 On the Dell website, I can download the update to version 1.24.0
I have done this 3 times now, with all the auto-restarts during installation, and even manual restarts afterwards. But I'm still running version 1.23.1
I must be doing something wrong, but it seems pretty fool proof and straightforward. Although, there is a bit of an oddity:
On the website, after I search for available drivers for my system based on the service tag, it shows 1 critical update available: BIOS 13.18 MB Installed version 1.23.1 Latest version 1.24.0
I click Download & Install
It runs through "preparing download", then "downloading", then "installing".
Then it shows "Status: Restart required"
So I restart my laptop, even waited about 20 minutes after the last restart, then checked my version. Still 1.23.1