This game is in desperate need of persistent progression content for main jobs...

[Eriane_Elis]

There's literally thousands of things you can do. There's a ton of lore to look into, there's like a billion quests in each expansion, there's relic weapons, Eureka, and other content like that. There's beating every dungeon at every difficulty level and I guess if you don't like savage / ultimate for whatever reason (I don't like dungeons but like savage / ultimate) so we all have our different tastes, then you can always play the glam / housing game. Collecting all the emotes / mounts / orchestreons and other things that are collector's pieces is another thing you can do. PvP which I doubt is your thing is something else you can get in. There's Heaven on High / PotD, New Game+, beast tribes, crafting and gathering especially with the new 5.21 content with ishgard restoration and ocean fishing.

I don't know many people who have completed everything. I'm approaching year 2 and have completed almost everything I listed except I haven't finished all Stormblood and Shadowbirnger quests yet and am missing a few new mounts, minions and orchestreons. There's so much to do. I know you are mentioning main-class progression but maybe you should consider not just playing a fighting class since that is only one part of the game? You should get into savage content, it isn't that hard and you don't need to use discord. It'll help for pugging but you don't have to.

[Commander_Justitia]

There's literally thousands of things you can do. There's a ton of lore to look into, there's like a billion quests in each expansion, there's relic weapons, Eureka, and other content like that. There's beating every dungeon at every difficulty level and I guess if you don't like savage / ultimate for whatever reason (I don't like dungeons but like savage / ultimate) so we all have our different tastes, then you can always play the glam / housing game. Collecting all the emotes / mounts / orchestreons and other things that are collector's pieces is another thing you can do. PvP which I doubt is your thing is something else you can get in. There's Heaven on High / PotD, New Game+, beast tribes, crafting and gathering especially with the new 5.21 content with ishgard restoration and ocean fishing.

The problem is at some point you will have done that already. And then you get patches that are clearly not aimed at veteran players but newbie player to generate more new players to the game. If your time schedule doesn't allow savage or ultimate raiding then you don't really have much to do. Palace of the Dead and Baldesion Arsenal were really nice content timesinks for in between with no time pressure, the game needs stuff like that bad. Even mentioning PvP is bad atm, it took us 7 months for one season and now we don't know when the next one will be either. They made it every aspect of the game too easy and grindy, and the rest is ultimate then. What's in between? I did the lvl79 dungeon in mid lvl70 gear yesterday, it felt like playing a normal dungeon for once, I actually had to press buttons.
I also am playing other games sometimes, but I wish they wouldn't be so predictable with their content, which seems to get less too. Less dungeons, less potd, less pvp, later ultimates, crafting and gathering nerfed that everyone can be 80 in a day and nothing is worth something on the marketboard.