Updating this thread to correct this comment in case anyone finds it as I've just gone through the process and am blogging about it.
Lemon Squeezy -> Stripe is doable with both customer and payment details, regulatory restrictions are irrelevant here. All you need to do is recreate subscriptions for the right dates using the saved payment details.
This is due to a lucky coincidence where Lemon Squeezy uses a Stripe account behind the scenes for all payments, so they just simply export their customer records to a different Stripe account which is possible through Stripe's tooling (the other account = your new Stripe account)
Updating this thread to correct this comment in case anyone finds it as I've just gone through the process and am blogging about it.
Lemon Squeezy -> Stripe is doable with both customer and payment details, regulatory restrictions are irrelevant here. All you need to do is recreate subscriptions for the right dates using the saved payment details.
This is due to a lucky coincidence where Lemon Squeezy uses a Stripe account behind the scenes for all payments, so they just simply export their customer records to a different Stripe account which is possible through Stripe's tooling (the other account = your new Stripe account)