If you select the "Java Edition" tab you can see (if you look closely) that this section (see attached) of the launcher is slightly lower than the rest of the tabs.
Steps to recreate:
Open Minecraft launcher (Microsoft store version)
Switch between the Java edition tab and all the others.
Look closely. Do you see it?
Linked issues
is duplicated by 3
MCL-22095
Bedrock and Dungeons Play Page's Design fall out of line by a few pixels
Resolved
MCL-22703
Hero images have different heights in tabs, caused by different height alignments of the "Play" button including gray underlying bar
Resolved
MCL-23083
Play button for Minecraft Java Edition and Bedrock edition are not aligned
Resolved
This is also the case for the Minecraft Legends tab.