You can also install directly from Signal via Obtainium. https://apps.obtainium.imranr.dev/

{"id":"org.thoughtcrime.securesms","url":"https://updates.signal.org/android/latest.json","author":"Signal","name":"Signal","preferredApkIndex":0,"additionalSettings":"{\"intermediateLink\":[],\"customLinkFilterRegex\":\"\",\"filterByLinkText\":false,\"skipSort\":false,\"reverseSort\":false,\"sortByLastLinkSegment\":false,\"versionExtractWholePage\":false,\"requestHeader\":[{\"requestHeader\":\"User-Agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Mobile Safari/537.36\"}],\"defaultPseudoVersioningMethod\":\"partialAPKHash\",\"trackOnly\":false,\"versionExtractionRegEx\":\"\\\\d+.\\\\d+.\\\\d+\",\"matchGroupToUse\":\"\",\"versionDetection\":true,\"useVersionCodeAsOSVersion\":false,\"apkFilterRegEx\":\"\",\"invertAPKFilter\":false,\"autoApkFilterByArch\":true,\"appName\":\"\",\"shizukuPretendToBeGooglePlay\":false,\"allowInsecure\":false,\"exemptFromBackgroundUpdates\":false,\"skipUpdateNotifications\":false,\"about\":\"Signal is an open-source end to end encrypted messaging app.\"}","overrideSource":null}