LONDON — When Britain leaves the European Union at 11 p.m. on Friday, some will be celebrating and others will be mourning. But for most people interviewed this week around the country, it seems to mark a time for recovery — from years of wrangling that has upended the political system and sometimes strained the country’s social fabric.

“It’s just been day after day of dysfunction, division and economic uncertainty. I’m not sure how we are supposed to bounce back from this,” said Andrew Fielden, a 39-year-old London-based accountant who supported Britain remaining in the European Union. “The irony is that Brexit was all about taking back control, but we’ve never been so out of control. No one even knows what the reality of Brexit will look like.”

Since the 2016 referendum on Britain’s membership of the union, political discord has rippled through the country, sundering towns and cities and rupturing relationships among families and friends. The atmosphere became so toxic that in December’s general election, many Britons crossed traditional political divides to deliver the Conservative government a substantial mandate to “get Brexit done.”