Outside of the EU, browser vendors will continue to ship browsers without eIDAS CAs, so just VPN into a non-EU country to download your browsers.
But you'll probably have to keep an EU version on hand in order to access EU gov sites, EU banks, and likely EU businesses if/when the EU government decides to force businesses to use eIDAS certs for their sites.
But you'll probably have to keep an EU version on hand in order to access EU gov sites, EU banks, and likely EU businesses if/when the EU government decides to force businesses to use eIDAS certs for their sites.