Banco Popular

Banco Popular is not mentioned in the provided news articles. Therefore, it's impossible to provide a summary about its current newsworthiness, recent events, or relevance based solely on the given information. The articles focus on CaixaBank facing legal challenges regarding multi-currency mortgages inherited from Barclays, and Santander significantly reducing its workforce in 2025. Without any mention of Banco Popular in the provided context, any attempt to create a summary about it would be speculative and inaccurate.