Not the OP, but it's decently well documented that there are games out there that are having a tough time with the memory constraints of the Steam Deck's 16 GB: https://youtu.be/z94TcihZxME?t=145

Now I'll grant that maybe it's a memory leak in TLoU that would cause you to still run into issues regardless of maximum memory but 16 GB is the recommended minimum and is starting to be the minimum recommended for other newer games and that's without having a chunk set aside for VRAM, so I'd bet that you'd see decent performance gains just by increasing the available RAM without it running at higher clocks.

The list of games that want combined RAM/VRAM in excess of 16GB is steadily increasing*, if there were an easy means of getting my Steam Deck to 32 GB, I'd jump on it. I haven't had less than 32 GB in my desktop daily driver since 2017 and honestly the 64 GB I have now starts to feel anemic once you've got a VM or two running with Chrome and a game all having to contend for the same resources. Honestly, I've never felt like I had too much memory, but I have definitely felt it performance wise when I don't have enough, where things start to stutter and the frame pacing goes all to hell while things are shuffled in and out of memory. Speed isn't nothing, but there is definitely an increasing argument to be made for quantity as well.

*

1. https://store.steampowered.com/app/1716740/STARFIELD/
2. https://store.steampowered.com/app/990080/Hogwarts_Legacy/
3. https://store.steampowered.com/app/1282100/Remnant_II/
4. https://store.steampowered.com/app/1649240/Returnal/
5. https://store.steampowered.com/app/1680880/Forspoken/
6. https://store.steampowered.com/app/2124490/SILENT_HILL_2/
7. https://store.steampowered.com/app/1888930/The_Last_of_Us_Part_I/

It's not that the RAM hungry ones don't run, it's that they fill up the RAM and create stuttering - sometimes even with a big page file. Emulators can do this, for example.

And more RAM is particularly good because the CPU and GPU pull from the same pool of RAM in the device.

I'm supposed to prove a negative? Do you want me to show a video of games crashing

Games that scale up with play (more players, growing environments, etc) tend to use more RAM over time, and especially such games with mods benefit from more RAM.

Anno, various building/construction games like Cities, Arm, DCS, Warzone whatever. Plenty of games will run with 8-16GB but run better with more. Yes, you can play the game with the "required" specs but that doesn't mean they run great, and CPU/GPU isn't always the bottleneck in larger environments.

I played through GoW on Deck but it definitely had a memory leak that would cause crashing after a bit. More RAM would have extended the play time despite that issue, and I've a couple other titles where the odd crash is likely for similar reasons.