sorry for my late response, but I didn’t have any Collection 1 Level 2 product available, so I had to order one and wait for the download.
This is what works for me
Product ID: LC081940262021022801T1-SC20210324183935
File > Import > Optical Sensors > Landsat > Landsat 8 30m
Select the tar.gz file instead of any extracted data.
Gives me correctly loaded bands including metadata on bandwidths ect.
