Confused about national team (international) schedule after June 2025

I have a question. Given the fact that the Nations League will end in June (at least for most teams) and that the 2027 World Cup qualifiers will only begin in February 2026, what will the teams be doing between June 2025 and February 2026 with barely any qualifying games planned? There will be promotion/relegation games in the Nations League in late October and the finals in late November and early December but that is literally it apparently.