See the top 100 things people are giving up for Lent in 2020 on Twitter, continually updated until February 29, 2020. You can also use the Historical Lent Tracker to see trends since 2009, though 2020 is still in flux, so I wouldn’t draw any conclusions about 2020 yet.
As I write this post, with about 1,200 tweets analyzed, perennial favorites “social networking,” “alcohol,” and “twitter” lead the list. I’ve already learned a new word: simping, “the type of person who, instead of trying to attract the opposite sex through being attractive and interesting, is more sycophantic and fawning,” commonly on TikTok. It’s currently at #12, though I assume it will fall as more people start posting.
Look for the usual post-mortem on March 1, 2020.