[BUG] First layer on MK4S is too low when using stock settings

[BlueFyre]

Printer model

MK4S

Firmware version

6.1.3

Upgrades and modifications

None

Printing from...

Octoprint

Describe the bug

The first layer when printing using stock profiles is too low on a large portion of the bed

How to reproduce

Print a sheet on the bed (250x210x0.2) using 0.2mm SPEED and Prusament PLA settings
This can be reproduced using any of my sheets and I have tried various brands of PLA including Prusament

Expected behavior

Perfect first layer

Files

STL and 3MF attached:
Sheet.zip

This is printed with stock values (230 C and 40 mm/s)

[BlueFyre]

Also to note, I tried printing this with other settings and sheets to compare. Lower temperature and speed did help but it's still not perfect

Smooth sheet, 215 C, 20 mm/s

Satin sheet, 230 C, 40 mm/s
(Ignore the top right corner as the sheet is just cooling and detaching from the bed)

Satin sheet, 215 C, 20 mm/s

Satin sheet, 215 C, 40 mm/s

[BlueFyre]

I also noticed there's a related enhancement request #3306 that seems to "fix" this issue by making a 0.04 (positive) offset but that doesn't seem like something a user should need to do to