Reproduction steps:
1. Create a new project from the "Get Started With Unity" template (Unity Hub -> New Project -> Learning -> Get Started with Unity)
2. After the project fully loads, close the "Welcome to the Unity Editor!" pop-up window
3. Select any cube in the Scene view
4. Observe the crash

Reproducible with: 6000.0.50f1 (by user), 6000.2.0f1 (517f89d850d1), 6000.2.7f1
Not reproducible with: 6000.0.0b13, 6000.3.0b3
Could not test with: 6000.4.0a1 (Does not support learning templates)

Reproducible on: Windows 10 (22H2) (by user), Windows 11
Not reproducible on: macOS 15.6.1 (M1 Max)

Notes:

Crash can occur in other project templates, however, it is rare and inconsistent for the reporters
Reports from 6000.2.0b6 and 6000.3.0b1 have the same stack trace, but the issue does not reproduce in the "Getting Started With Unity" template on this version
6000.0 does not support the "Getting Started With Unity" template, and could therefore not be tested. However, users have experienced the crash on these versions
From current reports, it seems to only happen with URP
From current reports, it seems to only happen on Windows

First few lines of the stack trace:
0x00007FFA0ED30B08 (Unity) tlsf_free
0x00007FFA0C8AB6FB (Unity) DynamicHeapAllocator::Deallocate
0x00007FFA0C8A2735 (Unity) DelayedPointerDeletionManager::CleanupPendingMainThreadPointersInternal
0x00007FFA0C8A0F03 (Unity) DualThreadAllocator<DynamicHeapAllocator>::Allocate
0x00007FFA0C8AA173 (Unity) MemoryManager::Allocate