I’m not sure if this is a store backend issue or the snap cli frontend issue.
I’ve seen that many snap packages larger than 1GB only shows as 1GB.
For example, intellij-idea-community, when you run snap info intellij-idea-community, got like this
snap-id: KSPcSedMkvhgEjkg3Ki1PdjX2Ylm2aOy
tracking: latest/stable
refresh-date: today at 14:13 JST
channels:
latest/stable: 2025.3.3 2026-02-20 (725) 1GB classic
latest/candidate: 2025.3.3 2026-02-20 (725) 1GB classic
latest/beta: 2025.3.3 2026-02-20 (725) 1GB classic
latest/edge: 2026.1-EAP 2026-02-20 (723) 1GB classic
2026.1/stable: –
2026.1/candidate: –
2026.1/beta: –
2026.1/edge: 2026.1-EAP 2026-02-20 (723) 1GB classic
2025.3/stable: 2025.3.3 2026-02-20 (725) 1GB classic
2025.3/candidate: 2025.3.3 2026-02-20 (725) 1GB classic
2025.3/beta: 2025.3.3 2026-02-20 (725) 1GB classic
2025.3/edge: 2025.3.3 2026-02-20 (725) 1GB classic
2025.2/stable: 2025.2.6.1 2026-01-11 (703) 1GB classic
2025.2/candidate: 2025.2.6.1 2026-01-11 (703) 1GB classic
2025.2/beta: 2025.2.6.1 2026-01-11 (703) 1GB classic
2025.2/edge: 2025.2.6.1 2026-01-11 (703) 1GB classic
Then use snap download intellij-idea-community to download the actual binary, the actual package size is 1.6GB.