One small correction, TSCM 5nm still uses finFet Samsungs 3nm is being testing with GAAFET and has it slated for 2021. TSMCs roadmap also has it but for 2022,

One small correction, TSCM 5nm still uses finFet Samsungs 3nm is being testing with GAAFET and has it slated for 2021. TSMCs roadmap also has it but for 2022, and intel at 2025