*Snipped from official post on steam*

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"
Hi everyone,

We’re happy to announce that Patch 1.09 for Horizon Zero Dawn Complete Edition is now live! This patch introduces crash fixes and performance improvements that were reported by our community.

You can find the Known Issues and full Patch Notes for Patch 1.09 below; if your issue isn’t among them, you can continue to send us your reports here. Please update your game and let us know what you think!

– Guerrilla

Known Issues
Some players are experiencing performance issues on specific GPUs or hardware combinations.
We're aware of and continue to investigate issues that are not yet solved on both the player-compiled lists by u/EvilMonkeySlayer and u/Rampage572 – thank you!

Patch Notes
Crash Fixes
Fixed a crash that could occur when switching resolutions
Fixed a crash that occurred during the cutscene during main quest “The Face of Extinction” after objective “Defend The Ridge”
Fixed a cause of GPU hangs on certain combinations of GPU/driver/memory

Performance Improvements
Improved the automatic Shader Optimization step in the menu – The optimization step *message* should now show less frequently on mid-/higher spec machines (please note you are also able to skip it on most machines!)
Added a VRAM Gauge that indicates amount of VRAM available and used, to help you optimize graphical settings for your hardware
Fixed RenderTarget aliasing, which reduces VRAM usage which may improve performance, texture quality and model quality

Graphical Improvements
Fixed HDR looking washed out on certain HDR configurations
Fixed Depth Buffer Copies which should fix multiple graphical glitches
Fixed graphical glitches due to RenderTarget aliasing not working correctly
Fixed that fog turned off when you turn off shadows in graphical settings
Fixed plant simulation at frame rates higher than 30FPS

Gameplay Improvements
Fixed that holding W when looting no longer stops registering other keys until release

Other
Fixed several warning message localization issues on Windows
Improved the benchmark results screen
"
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This seem to cover those few small issues I still had with the game. Thanks for the info!

NP :)

Think this specific fix might address the issue I have been having. Any expected date on release of the patch on GoG?

I'm not the dev, I just snipped it from steam. I'd guess within the next day or two, though.

It should be released already. I had an update today.

Thanks, I was looking in the patch notes in GoG Galaxy, and that didn't update. But when I started the game and went to Extras->Copyright and Trademark, it showed the version has been updated.

It also had the new VRAM metric in the settings menu.

Yeah it was a super tiny patch size-wise but they usually do a lot of fixes that fit into 8 or 12 megs and do a world of difference.

This patch made the specific problem I had with crashes much better. I still got another crash after over 3 hours, but prior to the patch I was seeing crashes every 30 minutes at the most (or up to every 2-5 minutes in specific areas). Glad they are continuing to work on fixing the worst issues.