I posted this a couple weeks ago - Direct install of apps going away on Android devices? Google approved apps only?.

And here's the latest now from Google on this issue: Android developer verification: Balancing openness and choice with safety

Bottom line - it looks like side-loading will still be possible, but much harder to access.

How the advanced flow works for usersHow the advanced flow works for users

This flow is a one-time process for power users – but it was designed carefully to prevent those in the midst of a scam attempt from being coerced by high pressure tactics to install malicious software. In these scenarios, scammers exploit fear – using threats of financial ruin, legal trouble, or harm to a loved one – to create a sense of extreme urgency. They stay on the phone with victims, coaching them to bypass security warnings and disable security settings before the victim has a chance to think or seek help. According to a 2025 report from the Global Anti-Scam All iance (GASA), 57% of surveyed adults experienced a scam in the past year, resulting in a global consumer loss of $442 billion. Because the consequences of these scams that use sophisticated social engineering tactics are so severe, we have carefully engineered the advanced flow to provide the critical time and space needed to break the cycle of coercion.

Enable developer mode in system settings: Activating this is simple. This prevents accidental triggers or "one-tap" bypasses often used in high-pressure scams.
Confirm you aren't being coached: There is a quick check to make sure that no one is talking you into turning off your security. While power users know how to vet apps, scammers often pressure victims into disabling protections.
Restart your phone and reauthenticate: This cuts off any remote access or active phone calls a scammer might be using to watch what you’re doing.
Come back after the protective waiting period and verify: There is a one-time, one-day wait and then you can confirm that this is really you who’s making this change with our biometric authentication (fingerprint or face unlock) or device PIN. Scammers rely on manufactured urgency, so this breaks their spell and gives you time to think.
Install apps: Once you confirm you understand the risks, you’re all set to install apps from unverified developers, with the option of enabling for 7 days or indefinitely. For safety, you’ll still see a warning that the app is from an unverified developer, but you can just tap “Install Anyway.”

In addition to the advanced flow we’re building free, limited distribution accounts for students and hobbyists. This allows you to share apps with a small group (up to 20 devices) without needing to provide a government-issued ID or pay a registration fee. This ensures Android remains an open platform for learning and experimentation while maintaining robust protections for the broader community.