Heart-rending videos of artillery strikes are being served up alongside funny snippets such as bomb-shelter cooking tips and invasion misinformation as the war in Ukraine plays out on TikTok. Since Russia invaded Ukraine, millions of people have tuned into the hugely popular social networking service for news and views of what is happening on the battleground. That was not lost on US officials who hosted a video call to brief popular TikTok “influencers” on details about the war, according to posts at the social network. “Lots of people have been turning to digital creators to learn about the …