I think that longer term strategic planning is missing from the Agile Scrum manifesto. Agree with the Software development priority queue part being good thing

I think that longer term strategic planning is missing from the Agile Scrum manifesto. Agree with the Software development priority queue part being good thing. Long term planning was in the waterfall process which does not work that great either since it tends to over focus on planning. How do you find a good balance between Agile and Waterfall? I think it can also be different what process works well if you are a startup and need to deliver a MVP minimum viable product as soon as possible. Compared a bit to if you are a long term enterprise company and need to maintain your code base over time. Ie dealing with technical debt from short term solutions vs long term stable.