[croemer]

> the granny example is explicitly not permitted

This is totally wrong.

The granny can get her pension anywhere in the EU, no "independent wealth" required.

There are some restrictions if you have no means to support yourself and require benefits, but the restrictions are definitely not as broad as "granny needs much money on her bank account"

Read: https://commission.europa.eu/strategy-and-policy/policies/ju... and links contained therein

[blibble]

not all grannies are of pensionable age

your linked page alludes to this, without details

> In order to stay in another EU country for more than three months, EU citizens have to meet certain conditions depending on their status (for example worker, self-employed, student, etc.) and may be asked to comply with administrative formalities.

if you follow the wizard on your page you get this:

https://europa.eu/youreurope/citizens/residence/residence-ri...