The best way to check before buying is to identify the exact LCD panel fitted to that ThinkPad T16 Gen 1 AMD. The 1920 × 1200 resolution alone doesn't tell you whether it has the low-power, 100% sRGB display. You can often identify the panel without special equipment, and since you're buying refurbished, it's worth checking before paying a premium for the better screen.
Why may you need a "low power display"? It means absolutely nothing for you if the display consumes 2.7watts or 3.1 Watts.
100% sRGB is something important. You can identify the screen of Lenovo by its serial number at pcsupport.lenovo.com if you are certain that it has not been replaced. Or you can use Aida64 to identify the panel, or extract monitor ID from Device manager.
Want to buy a T16 G1 (AMD) refurbished from a reseller. The displays are said to be 1920 x 1200 WUXGA. Is there any way to find out, if the display ist the "Low Power / 100% sRGB"-type without special equipment? The reseller told me he can't tell the exact type of display.
EDIT: Found some possible solutions here: https://www.reddit.com/r/thinkpad/comments/hazsjx/how_to_check_if_the_display_panel_is_lowpower/
Using https://support.lenovo.com/de/de/parts-lookup to search for the serial-number seems to be the best option.