### Godot version

v4.2.dev5.official [e3e2528ba]

### System information

Godot v4.2.dev5 - Windows 10.0.19045 - Vulkan (Forward+) - dedicated NVIDIA GeForce GTX 970 (NVIDIA; 31.0.15.3623) - Intel(R) Core(TM) i7-4790K CPU @ 4.00GHz (8 Threads)

### Issue description

#79975 closed his issue too early, it's a separate issue to #78434.

I'll just repost his same gif:
![256703477-a7db18c1-eccf-42af-85ef-1a1472f30c73](https://github.com/godotengine/godot/assets/15337628/1a7926ea-a9d8-4eb3-a857-8d34df23228f)

### Steps to reproduce

I had a theory it was related to editor settings and I tracked it down:

1. Editor -> `Display Scale` = Custom
2. Editor -> `Custom Display Scale` = 1.15
3. Click Save & Restart
4. Print stuff

```
var number := 0
func _process(delta: float) -> void:
	number += 1
	print(number)
```

The scale number matters, 1.1 seems to be fine but smaller decimal places such as 1.15 are what cause the issue.

### Minimal reproduction project

[printbug.zip](https://github.com/godotengine/godot/files/12683758/printbug.zip)

if (visible_ratio != p_ratio) {
		_stop_thread();
		if (p_ratio >= 1.0) {
			visible_characters = -1;
			visible_ratio = 1.0;
		} else if (p_ratio < 0.0) {
			visible_characters = 0;
			visible_ratio = 0.0;
		} else {
			visible_characters = get_total_character_count() * p_ratio;
			visible_ratio = p_ratio;
		}
		if (visible_chars_behavior == TextServer::VC_CHARS_BEFORE_SHAPING) {
			main->first_invalid_line.store(0); 
			_validate_line_caches();
		}
		queue_redraw();
	}
}
float RichTextLabel::get_visible_ratio() const {
	return visible_ratio;
}
void RichTextLabel::set_effects(Array p_effects) {
	custom_effects = p_effects;
	if ((!text.is_empty()) && use_bbcode) {
		parse_bbcode(atr(text));
	}
}
Array RichTextLabel::get_effects() {