Set up a “global” ignore file that gets synced between devices. Call it .stignoreglobal fort example and and change the .stignore file (which doesnt get synced) on every device to only include #include .stignoreglobal. Now you’re ignore state gets synced between devices and you can make changes from anywhere.

Mine looks like this:

// Incomplete Downloads
*.part
*.crdownload

// OS-generated files
desktop.ini
Thumbs.db

// Cache
cache
spotifycache

// Unity analytics
Unity

// LineageOS updater
org.lineageos.updater

// No read access :(
/Android/{data,obb}