2
This type of "Warning" exists for several languages and for different situations, it can be an error, or an alert or just an unrecognized experimental attribute.
You can try putting in JSON of their setting so, since the problem is in JS.
{
"compilerOptions": {
"experimentalDecorators": true,
"allowJs": true
}
}
If it doesn’t work, a "gambiarra" would put all the decorations alert with transparent color, so they are invisible on the screen...
{
"workbench.colorCustomizations": {
"editorError.foreground": "#00000000",
"editorWarning.foreground": "#00000000",
"editorInfo.foreground": "#00000000"
}
}


Solution see answer at link below: https://stackoverflow.com/questions/60012502/how-to-disable-peek-problem-in-vs-code-solved
– Vivi Santana