50 Megabytes? That's
tiny I would hope in 2022 that any text editor can handle a 50 megabyte file.
I routinely (like every day) open 500 megabyte files in SublimeText, and just checked to make sure that it can handle 1.5 Gigabyte files without much difficulty (it can).
Admittedly - once we get into the 5+ Gigabyte file size, startup times become annoying enough that I usually switch over to vim.
So, thank you for bringing this up as an important requirement for modern text editors - they should be able to open up multi-gigabyte text files without even breathing hard.