I had the same problem, and this command seemed to work for me. The full command for Godot 4.5 stable is:
curl -L -o Godot_v4.5-stable_export_templates.tpz https://github.com/godotengine/godot/releases/download/4.5-stable/Godot_v4.5-stable_export_templates.tpz
If anyone would rather use torrents. I don’t know why we can’t integrate ones torrents on the site but I have created some linked below. They use the official mirror as well as anyone who is seeding them obviously but feel free to check the hashes as it’s not ideal relying on some random guy (me).
I found that using wget downloaded them all very quickly and without issue so it seems to be an in browser problem however it doesn’t work in firefox, chrome or edge for me so 