Robert Lewandowski had been away longer than the Bundesliga.

But in a world where uncertainty surrounds us, there was still a certain inevitability the Pole would make the difference for Bayern Munich at Union Berlin.

A penalty got him there, after Neven Subotic carelessly booted Leon Goretzka, and Benjamin Pavard's late header made the points safe.

And so that's 40 goals again for Lewandowski, reaching that dizzying mark for a fifth season in succession, with eight Bundesliga games remaining and Champions League and DFB Pokal campaigns to complete.

The striker missed Bayern's three games immediately prior to the German season being suspended in March, after hurting his knee in Bayern's 3-0 hush-hushing of Chelsea at Stamford Bridge.

But Lewandowski is back in time for Bayern to renew their assault on success at home and in Europe, and given his first 40 goals of the campaign came in just 34 games, what price him making it to the half-century before the season's end?

The penalty, calmly slotted to the bottom right corner after a twitchy run-up, rewarded Bayern for a strong enough first-half showing, one in which they had already seen a Thomas Muller tap-in disallowed after a VAR check.

That had been a classic marginal call - the sort for which we almost became nostalgic during football's grim hiatus.

And of course the goal, when it arrived in the 40th minute, was met by near silence, which is going to take some getting used to.

This is a centenary year for Union's old-school ground, the Stadion An der Alten Forsterei (Stadium of the Old Forestry), and the flag-flying and scarf-waving that is usually such a feature was replaced by the barest of backdrops.

Banks of empty seats can provide colour, but empty terraces speak of bleak times, and there are three major standing areas at Union - one at each end and another running the length of the pitch.

Taking into account the fact each terrace would benefit from a lick of paint, or a truckful, there was a majorly austere vibe to this occasion, and the once-familiar energy and noise isn't returning any time soon.

But Germany could take a bow after an apparently successful weekend. Its decision to bring back the Bundesliga - the first of Europe's major leagues to return - came on the back of the country's seemingly effective steps to control the COVID-19 spread.

The reproduction - or R - rate is reported to be around a manageable 0.75, and while the country is close to reaching 8,000 deaths from the pandemic, that figure is tragically dwarfed elsewhere in Western Europe. The United Kingdom and Italy have passed 30,000 and Spain and France are not far away from that grim mark.

Chancellor Angela Merkel and her team have left governments elsewhere pondering their own handling of the crisis, and the Bundesliga has struck a similarly effective tone.

The return of football in South Korea had a sense of the shambolic about it, but in Germany there has been impressive social distancing, substitutes sitting several seats away from each other in the stands, leaving the pitchside dugouts to coaching staff.

Face masks, too, were on show. Besides the players on the field and the head coaches roaming the touchlines, it was difficult to spot anybody not masked up.

It is such small things, however sobering, that seep back into society. It's about setting an example, and given Bayern's trip to the German capital was being broadcast worldwide, it was not a small audience that was witnessing the German way of operating.

Bayern weren't great, incidentally, but their lead is back up to four points after being trimmed by Borussia Dortmund on Saturday.

And head coach Hansi Flick has now seen his team plunder 50 goals in his 16 Bundesliga matches since taking charge – a record quick time for reaching the landmark.

An eighth successive Bundesliga title is likely but not inevitable, given Dortmund, with the likes of Erling Haaland and Jadon Sancho, are such an exciting proposition.

Bayern and Dortmund must still meet in Der Klassiker. Fans or no fans, that should still amount to a great occasion.

But Bayern are now unbeaten in their last 16 matches, interim coach Flick has become permanent coach Flick, and Lewandowski is at it again. The rust will surely fall away.

Beyond Germany, Bayern's great goal-getter might not have the starry cachet of a Messi or a Ronaldo. Within Germany, the last two months have changed nothing: here, they still bow at the feet of king Lewy.