Official English owner’s manual for BYD SEAL, listed by BYD Europe for Europe. Right-hand drive. Original PDF, 248 pages.
Edition: EN_V1 (12.2023). Equipment and procedures may vary by market and vehicle specification. Check the manual supplied with your vehicle for its exact configuration.
The BYD catalogue and the dashboard illustration on PDF page 9 identify this as the right-hand-drive version. The edition line at the end of the PDF says left-hand drive.
Source and manual preview: BYD Europe — Owner’s Manuals.