As a LH gold, AC doesn't give me anyting extra, not even a priority lane in YYZ and YVR flying on Air Canada. All perks are reserved for AC gold members, but are ignored for other star gold members.
So you can't expect that LH gives you something extra either.
The exit seats are NOT free for other gold members, not even for SEN and HON if you fly on light fare within Europe. for interconti they are bookable in advance for LH Group gold members ore above.