A comprehensive, trend-based analysis of Whereby's workforce strategy from 2020 to 2026 cannot be generated as the critical 'DATA FOR ANALYSIS' section, detailing workforce expansion, freezes, and reductions, was not provided. The specified story flow, requiring derivation of macro trends, current rationales, and recent specifics, is entirely dependent on this foundational data. Without concrete information regarding Whereby's human capital movements and strategic justifications over the stipulated period, any analysis would be speculative and not adhere to the strict requirement that all results must be derived solely from the provided list. Therefore, a professional, data-dense assessment in the requested Bloomberg-style prose is currently infeasible.