Tech companies including Meta Platforms Inc META.O and Snap Inc SNAP.O have reduced staff this year as they grapple with a slowdown in growth and mounting costs. Adds shares, details, background Nov 17 (Reuters) - Roku Inc ROKU.O said on Thursday it would cut 200 jobs in the United States, becoming the latest tech company to lay off workers amid an economic slowdown and decades-high inflation. The company's shares have plunged about 75% this year as inflation and the risks of a looming recession have cut ad-spending budgets.