yeah no one is talking about this term.

Yes they were; that is exactly what "after they win seats in the midterms" means.

but you just have to look at bidens last term for your answer.

Democrats were not a majority in the Senate at any point in Biden's term, and even if you lump the independents in with them that only gave them an extremely narrow margin.

On top of that, they lost the House half-way through Biden's term.