Brave works well on iOS for this use case.

Marp works well if you like Markdown. I cannot, however, speak to things such as transitions (though marp exports to a nice HTML file which includes a PowerPoint-like interface, so I’d imagine it’s possible).

Framework as well—everything just works. I recently discovered framework-tool, which is a mindblowing level of integration with Linux.

I think it’s in the Rick and Morty episode where Rick is guarding his special toilet that shows his underground hideout computer booting Debian 3 or something.

If you’re on Wayland, fuzzel just keeps getting better each release.