By Update 1.14, Panic Button (the developer of the port) had significantly polished the experience. While it runs at 30 FPS and lower resolution than PC/PS5, it is considered one of the best "impossible ports" on the system due to its stable frame rate and gyro-aiming support.
: This indicates the file format (Nintendo Submission Package), which is the standard format used for digital games and software on the Nintendo Switch system. -Update 1.14- DOOM Eternal -NSP--Update 1.14-.part3.rar
The file "DOOM Eternal -NSP--Update 1.14-.part3.rar" is the third segment of a split, multi-part archive for a Nintendo Switch update, requiring all corresponding parts (e.g., part1, part2) in the same folder to be extracted together using tools like WinRAR or 7-Zip. Once extracted, the resulting .nsp file is used for installing version 1.14 of DOOM Eternal on a custom firmware-enabled Nintendo Switch. By Update 1