An important change that should be added for people who want to group up for XP/CP/ML
Allow players to flag LFG while they have trusts out, allow players to LFG while they are leveling with trusts, allow players to LFG while they are getting merits / Capacity Points and even Mastery Points.
https://i.imgur.com/wMagO1c.gif
The LFG icon is very visible messaging to others that you WANT to group up, this is something people want to do but very rarely ever do these days.
XI has become a very solo orientated game for many more casual players, this would help change this. Nobody reads search comments and many players are scared to reach out and ask if others want to group up, this will tell them "yes I want to" and so make grouping up more common in the field.
This kind of simple change would not only make people group up more, but also allow people to make friends beyond this.
I can't emphasise enough how important I think this would be to the many casual / new / returning players XI has.
If there is some technical reason you can't do this with the current LFG status, then add a new menu option to show the LFG icon in a different way.