This is a nice overview. Who is this aimed at? Do you think it could be worth giving some substance to the practical workings of each strategy?

Like for example, what it is like / the effort involved in organising PI planning, indeed concretely what is a program increment or an agile release train.

And then for example with LeSS, how is overall sprint planning organised, when does it take place, who's involed, how it compares with organising PI planning. What does a single product backlog imply, who's responsible, can any team take tickets?

You can probably tell I have experience with SAFe but none with LeSS ^^. You've left me with more questions than before reading the article 😅