A VPN sounds like the right answer for anonymous IG viewing, but for most users it's overkill. Here's when VPNs help, when they hurt, and when they're unnecessary.
Free anonymous viewing - VPN not required. Free to test. No card required.
Visit GoomViewYes. The viewer mediates the connection, so Instagram never sees your real IP regardless of whether you use a VPN.
Marginally. The viewer alone provides identity anonymity. A VPN adds network anonymity, which only matters if your ISP or network is being monitored.
Not just for viewing through anonymous tools. You're not signed in, so there's no account to ban. If you sign into your IG account through a VPN, that can trigger security checks.
ProtonVPN free tier is fine for casual viewing. For heavy use or unlocking restricted countries, paid VPNs (NordVPN, Mullvad) are more reliable.