As I described at Is it possible to drop an unsupported architecture from the store?, leaving a channel closed long enough seems to help with deleting snaps from architectures you’ve dropped support for, but the Certbot snap is still in a weird state on i386.
Are the snap store maintainers aware of issues like this? Is there anything that can be done to fix the problem with the Certbot snap? Below is terminal output from an i386 system and screenshots from the web UI.
# snap install --classic certbot
error: snap "certbot" is not available on stable but is available to install on the following
edge snap install --edge certbot
Please be mindful pre-release channels may include features not completely tested or
implemented. Get more information with 'snap info certbot'.
# snap install --edge --classic certbot
error: snap "certbot" is not available on latest/edge but other tracks exist.
Please be mindful that different tracks may include different features. Get more information
with 'snap info certbot'.
# snap info certbot
error: no snap found for "certbot"