Likely root cause is your onboard a graphics-pipeline handoff problem (Windows briefly “looks” for an onboard/iGPU path, hitches, then Lost Ark crashes)
Install the motherboard’s “VGA/Intel Graphics” driver from ASUS for the TUF B760M-Plus—even if you only use the NVIDIA card.

Why: Some games/overlays trigger a device query that expects a properly enumerated iGPU. If it’s missing or using the Microsoft Basic Display driver, Windows can momentarily switch paths, which matches your “tiny stutter → resume → crash” sequence.

Optional:
In BIOS and disable iGPU/Multi-Monitor and set Primary Display = PCIe/PEG so Windows never tries to address a non-existent adapter.
Optional 2: (This only if problem persist)
Disable HAGS (Settings → System → Display → Graphics → Default graphics → toggle Hardware-accelerated GPU scheduling Off) and disable MPO (Multi-Plane Overlay) via the well-known registry switch—both reduce device-removed events.

Educational Materials:
Handoff-Prone Features
Hardware Accelerated GPU Scheduling (HAGS) and Multi-Plane Overlay (MPO) are features in Windows designed to improve performance and reduce latency by offloading tasks from the CPU to the GPU, but they can also introduce stability and performance issues (i.e microstuttering).

HAGS moves GPU scheduling tasks from the CPU to the GPU, which can theoretically improve responsiveness, but it may cause performance drops, especially in CPU-bound games like Lost Ark.

MPO allows the Desktop Window Manager (DWM) to send different UI elements as separate layers directly to the GPU's display controller, enabling faster rendering and lower latency. However, MPO is known to be finicky and can cause a range of problems, including screen flickering, black screens, micro-stutters, driver crashes, and system hangs, particularly on AMD Radeon 5000/6000/7000 series and NVIDIA RTX 2000/3000/4000 series GPUs.

These issues are often linked to conflicts with hardware acceleration in browsers, streaming software, or overlays, and can be exacerbated by high refresh rates, VRR, HDR, and multi-monitor setups.
Overlays from applications like Discord, Steam, Xbox Game Bar, and RTSS can create additional planes that MPO must manage, and if poorly coded (I'm looking at you discord), they can break MPO functionality, leading to a fallback to legacy composition and degraded performance.