As I write this, game 73 of the TCEC Season 18 superfinal has just ended. What was most "interesting" about this game is the sheer amount of shuffling both sides did: starting from around move 30 to move 200+, effectively nothing happened with Leela pushing a pawn only to avoid 50-move draws. It had three such moves to reset the 50-move counter, which naturally led to 150+ moves of shuffling. On move 220, Leela finally played 220. e4, which led to some trades and a more equal-ish position, but this also reset the 50-move counter and the shuffling started anew. The game went past move 300 with opposite color bishops on the board, enough for humans to say it's a clear draw, but Leela still saw a 40% chance for White to win, which led to more shuffling. Finally, on move 357 and faced with yet another 50-move draw, Leela's eval dropped and the game was adjudicated as drawn.
(This description makes it sound like it's Leela's fault the shuffling happened, but in fairness, Stockfish also saw a substantial White advantage for much of the game.)
This kind of scenario happens pretty often in computer chess, but I'm wondering what would've happened if this were a human game. Can the player with Black claim that White is being unsporting by shuffling and refusing to accept a draw? Are arbiters permitted to adjudicate if one player isn't making an active attempt to win the game, but seems to be merely prolonging it?