Go to his twitch channel, look the vod around 1 month ago (from this comment) with the length of 7:57:50, with the thumbnail of him fighting the shogun weekly boss, he uses thignari, yae, nahida, bennett on his party with thignari on field. Get back to me and reply if this helped you I can't post link on mobile, it took me a few minutes. On that vod, he is doing the raiden story quest part 1 (he click photos of her) and part 2 (to fight raiden shogun).
Erm well actually farming artifacts before Adventure Rank 45 is incredibly inefficient and suboptimal because below Adventure Rank 45, you are not guaranteed to receive a 5 star artifact when completing a domain, meaning that you will be wasting resin and time on suboptimal artifacts
