I never understood why one either have to play "the" MMO at all times or just quit it and find a new one.
I jump between MMOs when I feel for it.

FFXIV has good story driven gameplay and the cutscenes can be a nice break to just lean back and take a breather.
Sometimes I just feel to take it easy and do easy stuff like running Dungeons or FATEs for the new FATE grind.
The EX Primal fights is alot of fun imo to tackle. Never given Savage Raids a try since I never been interested enouth to even start.

My other main MMO I play in ESO.
I like how the gameworld feels more open and how everything scales to your level. Meaning you can go anywhere whenever you want and do whatever you want when you feel like it.
Meaning you can enter a map and start any quest you come across regardless if you're a first day player or a 1 year old veteran.
There's still alot of quests and story I haven't done in ESO in almost 2 years now.
Done Veteran Trials (raids in ESO) and it's been alot of fun to me.

ESO doesn't require a subscription to play, so whenever I feel like it I can just sub to FFXIV and roam around here without feeling like I have to pay subscriptions for 2 MMOs at once.
The game and character will be there waiting for my return.
To me there is no perfect MMO that can satisfy my every need of what I am looking for in an MMO, so I do the next best. I find what I am looking for in different games.
As games are made and focused differently.
If you like FFXIV but tired that it has lost its identity you can just take a break from FFXIV and find that identity in another game.
And when/if you feel like it you can return here.
There's no need to be so dramatic about leaving a game. People come and people go.
And people take breaks from games when they don't find it fun and return later when it feels more fun again.
Game changes and so do people.
It's natural.