HP X2 11 – 11 inch Chromebook Tablet With Detachable Stand, Keyboard, and Stylus Included – Qualcomm Snapdragon 7c Gen 1 – 8GB Memory – 64GB eMMC – Night Teal or Shade Gray $299.99

This was on sale two days ago for $299.99, went back up to $349.99 yesterday, and is back at $299.99 today.
The previous lowest price for this model from Best Buy was $349.99 during November of 2021.
This has a "regular price" of $599 but was almost always available at $399 before this sale activity.
A few notes from their Q&A section on Best Buy’s product page:

• This model has a micro SD slot for expandable storage
• This is the non-LTE variant
• Comes with sylus
• Updates through August 2029

Color Options:

• Night Teal: https://www.bestbuy.com/site/hp-1…Id=6471019
• Shade Gray: https://www.bestbuy.com/site/hp-1…Id=6471017