Penty of flag-waving in the video, culiminating with equation 'Allied victory' = 'British have had Bren guns'. German infantry not knowing what to do if MG is somehow incapacityted, even retreating??? MG-42 inacurrate so much that it could not kill a person??
Germans did the clearing of houses with grenades, submachinegins and yes, MG-34s/42s. British army adopted to belt-fed FN MAG once available, thus the much-touted lower ammo consumption was not seen as factor with MGs. Beyond the British empire, there was no license production of Brens, and magazine-fed MGs were quickly discared after ww2 by anyone capable to produce MGs. Statement hat MG-42 was not produced anywhere in the world after ww2 does not hold water either, it was produced in ex-Yu as M53 machine gun for decades, while West Germany made the MG-3, the MG 42 re-chambered to 7.62 NATO round, widely exporting it and selling production licenses in several countries.
MG 42 was used as tank/AFV gun, both as coax, hull and AA weapon, it was used in single of multiple AA mounts, the Bren was not suitable for this*. German gun was also used as basis for turret- or hand-held aircraft wepon, the MG 81.
BTW - MG 34 or 42 might've been called Spandau by British troops. US, Soviet, French troops, plus Greek, French, Albanian and Yugoslav partisans certainly did not.
*yes, I know that it was jury-rigged as AA gun on some tanks