Downloading from APKPure is a popular choice for users who cannot access the Google Play Store, but it comes with distinct security trade-offs . Outline itself is a highly-rated open-source tool developed by Jigsaw (a Google incubator) that allows you to run your own VPN server using the Shadowsocks protocol. Overview of Outline VPN
Outline is designed to bypass sophisticated censorship and is widely considered more resilient than traditional VPNs because it uses custom, private servers.