I must also say [very mild, personality-focused Doctor Who spoilers] I love that Davies has recontextualized the Timeless Child arc into a reinforcement of the Doctor's belief in everyone's unique beauty and individuality. He's not some troubled wandering god, he's just a Guy who's pretty unique (to be fair, he already was Special ever since they made him The Last Of The Time Lords in '05) and he's accepted that and he's totally chill about it and in his personal ethos, every single creature in the universe is just as unique and special as he is.
It's the exact opposite of what every fan (myself included) feared. Instead of elevating the Doctor above everything else, it firmly grounds him once more as just an aimless traveller.
Also having thought on it more it's not like the Timeless Child arc makes the Doctor any more invincible than they already were. Just now the show doesn't have to spend an entire special explaining how the Doctor can keep on regenerating lol.