yes, I have it as well.
But game works just fine.
It’s hard to find something related to this particular warning anywhere, and for some reason there is nothing about it on android site for any of android versions: Restrictions on non-SDK interfaces | Android Developers
StrictMode policy violation: android.os.strictmode.NonSdkApiUsedViolation: Landroid/graphics/Typeface;->sSystemFontMap:Ljava/util/Map;
StrictMode policy violation: android.os.strictmode.NonSdkApiUsedViolation: Landroid/graphics/Typeface;->sSystemFontMap:Ljava/util/Map;
at android.os.StrictMode.lambda$static$1(StrictMode.java:416)
at android.os.-$$Lambda$StrictMode$lu9ekkHJ2HMz0jd3F8K8MnhenxQ.accept(Unknown Source:2)
at java.lang.Class.getDeclaredField(Native Method)
at androidx.test.tools.crawler.platform.hybrid.TextViewHelper.getSystemFontMap(TextViewHelper.java:3)
at androidx.test.tools.crawler.platform.hybrid.TextViewHelper.<clinit>(TextViewHelper.java:1)
at androidx.test.tools.crawler.platform.hybrid.TextViewHelper.getTextOfTextViewOrEmpty(TextViewHelper.java:1)
at androidx.test.tools.crawler.platform.hybrid.EspressoElement.extractDescription(EspressoElement.java:4)
at androidx.test.tools.crawler.platform.hybrid.EspressoElement.create(EspressoElement.java:2)
at androidx.test.tools.crawler.platform.hybrid.ViewScreenStateBuilder$ViewTreeNode.<init>(ViewScreenStateBuilder.java:1)
at androidx.test.tools.crawler.platform.hybrid.ViewScreenStateBuilder.traverseAndBuild(ViewScreenStateBuilder.java:5)
at androidx.test.tools.crawler.platform.hybrid.HybridStateExtractor.tryExtractingScreenState(HybridStateExtractor.java:9)
at androidx.test.tools.crawler.platform.hybrid.HybridStateExtractor.getStableScreen(HybridStateExtractor.java:2)
at androidx.test.tools.crawler.platform.RemotePlatform.handlePerformScrape(RemotePlatform.java:1)
at androidx.test.tools.crawler.platform.RemotePlatform.messageLoop(RemotePlatform.java:27)
at androidx.test.tools.crawler.platform.RemotePlatform.lambda$startCrawlAndWaitUntilFinished$0$RemotePlatform(RemotePlatform.java:1)
at androidx.test.tools.crawler.platform.RemotePlatform$$ExternalSyntheticLambda0.run(Unknown Source:6)
at java.lang.Thread.run(Thread.java:923)
UPD: Maybe it’s one of their false positive warnings
UPD2: I found it! config/hiddenapi-light-greylist.txt - platform/frameworks/base - Git at Google
it’s in Android 9 hiddenapi-light-greylist.txt
so, it’s should be fine