I bought a google pixel 9 wiped it and installed Grapheme OS before installing an eSim I have read that it might not be possible to install an eSim once Grapheme OS has been installed, before purchasing an eSim, can this please be confirmed?

In addition, I travel frequently between Europe and South East Asia, which eSim subscription would be recommended?

And a last question, all banking apps require a sim card (eSim) to be installed, is their a way to be able to access banking apps without having a sim (or eSim) installed? Thank you for your feedback