BUR #4905 has been approved by @evazion.
create alias genshin -> genshin_impact
This has been sitting on the upper-end of missed searches for a while.
There's not really any ambiguity. While there are a few low post count artist tags containing the phrase "genshin", the posts under them exclusively depict Genshin Impact. A good sign we should probably just save these searchers the hassle and direct them to the correct tag.