How to reproduce:

1. Open the “IN-136725.zip” project
2. Open the “SampleScene“
3. Select the “Canvas → Text (TMP)“ GameObject in the Hierarchy
4. Set the Text Style to “Medium“
5. Set the Font Style to “Bold“ in the Inspector (if it isn’t already)
6. Change the Font Size to 250 in the Inspector
7. Observe the Game view

Actual result: The spacing between letters is greater
Expected result: The spacing between letters is the same

Reproducible in: 2023.1.0a1, 6000.0.71f1, 6000.3.11f1, 6000.4.0f1, 6000.5.0a9

Reproduced on: Windows 11 Pro (25H2)
Not reproduced on: No other environment tested

Notes:
- The Text Style with the custom font size can be found in “Assets/TextMesh Pro/Resources/Style Sheets/Default Style Sheet.asset”
- Only works if the text has the “Bold” Font Style (no other Font Style reproduces this issue)