Can you please bring this somehow?

We can scale the whole interface. With lower scaling below 100% this is usually not a problem but if it goes above 100% the symbols will be blurred.

As a player playing FF14 in 2k resolution, the interface is smaller than usual and the buff symbols are even smaller.

If you scale the buff symbols higher or generally any elements of the interface then you have a real heap of mud.

I already have to wear glasses and even with that it's hard to keep track of the buffs and debuffs in all the hustle and bustle.

And yes, theoretically I could play the game in a higher resolution but who wants that if you have the possibilities and the technique?