How the 2010s' Most Forgotten Isekai Combined Magic With Mecha

Are there any Isekai anime/manga/light novels where the people of the fantasy world find out the protagonist was reincarnated? - Quora

Are there any isekai manga where MC is summoned/reincarnated and brings modern technology in that fantasy world? - Quora

Fullmetal Alchemist: Brotherhood (TV Series 2009–2010) - News - IMDb

Can we say that the isekai genre in anime had the same kind of popularity in the 2010s that the mecha genre had back in the 70s-80s? - Quora

Darling in the Franxx (TV Series 2018) - News - IMDb

15 Best Isekai Anime With Mecha

How a Forgotten Tokusatsu Franchise Became the Latest Hit Mecha Anime - IMDb

Can we say that the isekai genre in anime had the same kind of popularity in the 2010s that the mecha genre had back in the 70s-80s? - Quora

Mecha Anime You May Have Missed - This Week in Anime - Anime News Network