Void Drifter hits global, and boy does she slice and dice. The 210 bundle + what I was able to farm yesterday was enough to take her to 6 stars. Here's 3c's breakdown of her: https://youtu.be/7poRogK34Iw
The thing to keep in mind about the DXY fight is that you have to break the shield before VD's charged attacks begin. This is one of those rare fights where insta-crossing is not required to get the top score, and actually makes it harder to get. If you do insta-cross, you need to activate the ELF before GK dodge.
Tronya makes the Doom fight so easy, but you need at least 0.4 SP/sec affix on one of the Welt stigs. You'll also need to reset for SP pack rng, which admittedly can be burdensome. It is possible to score 31733, but the SP pack needs to land at your feet.
Currently, that_kestrel has 18,417 views for Honkai Impact 3rd across 99 videos. There's close to 21 hours worth of content for Honkai Impact 3rd published on his channel, roughly 53.51% of the content that that_kestrel has uploaded to YouTube.