Hello @Kstainton,
Let's go beyond and test all possibilities. (I can have a Lenovo E15 as a test computer)
BIOS : FR, EFDE : FR (default) = strange keyboard layout (not US nor FR : blank keys...)
BIOS : FR, EFDE : US = FR layout missing some keys (§, @, everything that need Alt Gr)
BIOS : FR, EFDE : BIOS = same thing as "EFDE : US"
BIOS : US, EFDE : FR (default) = full FR layout
BIOS : US, EFDE : US = full US layout
BIOS : US, EFDE : BIOS = full US layout
(Physical keyboard is FR)
Does that answer your question ?
UEFI BIOS Version R1EET51W (1.51) (the latest for this model)