"Build and Run" on Ubuntu opens two instances of the Player at once

How to reproduce:
1. Create a new Unity project
2. Go to File -> Build and Run
3. Observe the results

Expected results: Only one instance of Player opens
Actual results: Two instances of Player open

Reproducible with: 6000.3.0a5, 6000.3.12f1, 6000.4.1f1, 6000.5.0b1, 6000.6.0a1
Not reproducible with: 6000.0.71f1, 6000.3.0a4

Reproducible on: Ubuntu 22, Ubuntu 24
Not reproducible on: Windows 11, macOS Tahoe 26 (M1)

Note: Not reproducible when manually opening the Player from file explorer