Someone decided that if we wanted the Key column to be visible in the List view, that you'd merge that column into the Summary field?
Which is terrible for being able to scan the table because "PROJECT-123" is a different width than "PROJECT-4567" and so the user's eye has to jump around as you scan down the Summary column.
It's awful. Please undo that and let us put the Key column wherever we want and not merged into the Summary column text.
It also causes weird user experiences like in this answer: https://community.atlassian.com/forums/Jira-Product-Discovery-questions/How-do-I-sort-by-idea-number/qaq-p/3009980
Where now you have to Sort a column not using its header row? So we now have one special column that gets sorted in a different way? Eesh.