Okay I'll have to add something - skilling beyond level caps in general, we won't get onto something for those fragments.
I'll copy something from a blog post for Diablo II Resurrected, which is a 2021 remaster of a 2000/2001 game, which basically also had had a fairly insane to reach level cap, which you haven't needed to finish the game on the hardest difficulty - you'll be quite a bit below that. I think even without knowing that game you'll understand it's basic premise - describing glaring similarities to another game released in 2001 - Runescape Classic.
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"Over 3000 kills, more than 200 hours, and only three bosses to grind. For over 22 years, this was the tedious routine of the average level 98 Diablo II player—all to gain a single level."
[...]
"When the team began ideating on Season Two’s potential new features, they first analyzed how players approached the storied race to level 99. Reaching that level cap is a prestigious achievement accomplished by only a fraction of Resurrected’s millions of players. In Season One, only 787 accomplished it in softcore mode, which allows one to respawn after death, and 136 in hardcore mode, where death is permanent and forces a player to start again from level one."
[...]
"The reigning method of getting to the game’s highest level—killing the bosses Baal, Diablo, and Nihlathak ad nauseam—felt too restrictive and unimaginative. Grinding to 99 also often required players to utilize one of the few class builds capable of doing so efficiently, like a Necromancer wielding the Amplify Damage spell or a Paladin with Conviction aura."
[...]
“Even though there’s a lot of nostalgia associated with it, grinding one or two monsters over and over again without sleeping to make it to level 99 didn’t appear fun to us,” says Gallerani. “So, we wondered: How can we make the game more fun to play, more exciting to watch, and get more people into it?”