Should I use a dust plug for my iPhone SE to keep it dust free?

Hello~ I would suggest that you be extremely careful with cleaning the port on your iPhone as not to damage it by doing so. I have several cases that have a tab that covers the charging port and work quite nicely. I have on occasion used a port plug but find that removing them, keeping up with them and keeping them clean is a hassle. Try looking for a case that has a flip back tab online as they work well and does not impede charging.

~Katana-San~

A dust plug wouldn't hurt, especially if you keep your phone in your pants pocket, where lint lives and can accumulate in the charging port. I don't keep my phone in my pockets for this reason.

I use a silicone plug in the USB-C port of my iPhone 15 to keep dust, lint, and water out. I have wireless chargers pretty much everywhere. Can't really remember the last time I took the plug out as I very rarely plug anything into it.

Make sure that it stays dust free and all of it will be fine