I'll disengage from this thread because I feel that it's just becoming a
massive waste of time, and/or OP is trolling the list, by not providing
any factual data.

Just one note:

On 18/04/2026 17:28, Simon Schröder via Std-Proposals wrote:
> Make it a std::vector<const std::variant> instead

This cannot exist; it violates the allocator requirements (and most of
the container requirements). I'm working on a proposal (P4102) that
brings us one step closer to vector<const T>, though. It should be in
the next mailing.

Thank you,
--
Giuseppe D'Angelo