FontAwesome 6 icons not showing

[AmosJuniorKorp]

Hello I'm trying to use new fontawesome version 6 icons. (Pro version)
I copied the .ttf files to my fonts folder, but in the app it only shows unicode fonts from the previous version. I can see that he changed the old fonts to the new version because there were small changes in some that we use. What could cause the new fonts not to load? Has anyone gone through this?

Ex:

"dependencies": {
"@angular/animations": "~14.0.6",
"@angular/common": "~14.0.6",
"@angular/compiler": "~14.0.6",
"@angular/core": "~14.0.6",
"@angular/forms": "~14.0.6",
"@angular/platform-browser": "~14.0.6",
"@angular/platform-browser-dynamic": "~14.0.6",
"@angular/router": "~14.0.6",
"@bigin/ns-url-handler": "^1.0.6",
"@finanzritter/nativescript-share-file": "^2.1.0",
"@nativescript-community/sentry": "^3.1.3",
"@nativescript-community/ui-material-bottom-navigation": "7.0.20",
"@nativescript-community/ui-material-tabs": "7.1.3",
"@nativescript-community/ui-pager": "^13.0.35",
"@nativescript/angular": "~14.0.2",
"@nativescript/core": "~8.3.0",
"@nativescript/datetimepicker": "^2.1.10",
"@nativescript/geolocation": "^8.0.2",
"@nativescript/google-maps": "1.4.4",
"@nativescript/theme": "~3.0.2",
"@nativescript/unit-test-runner": "^3.0.4",
"@ngx-translate/core": "^14.0.0",
"@nstudio/nativescript-cardview": "^2.0.1",
"@nstudio/nativescript-loading-indicator": "^4.1.2",
"@triniwiz/nativescript-toasty": "^4.1.3",
"angular2-uuid": "^1.1.1",
"decode-google-map-polyline": "^1.0.1",
"jwt-decode": "^3.1.2",
"nativescript-barcodescanner": "^4.1.2",
"nativescript-exit": "^1.0.1",
"nativescript-oauth2": "^3.0.9",
"nativescript-pdf-view": "^3.0.0-1",
"nativescript-sqlite": "^2.8.6",
"nativescript-ui-autocomplete": "^15.2.3",
"nativescript-ui-calendar": "^8.0.2",
"nativescript-ui-chart": "^9.0.1",
"nativescript-ui-listview": "^10.0.2",
"nativescript-ui-sidedrawer": "^10.0.2",
"rxjs": "~7.5.0",
"zone.js": "~0.11.5"
},

[AmosJuniorKorp]

https://fontawesome.com/docs/web/setup/upgrade/pseudo-elements
They mention that they changed the form for simplicity, but how can I do this with nativescript?

Before, we made the declaration globally in nativescript's app.css: