Basically once you relic a 6 star or below character it stops showing you have many shards you have left to farm them in your inventory screen, but it also doesn't say "MAX" the way the 7 star relice...
Ideas
Yeah it’s quite difficult to keep track of farms after they’ve been reliced. Like I can see how much I need for CX-2 but my Scorch at R2 loses all shard farm information