Shopify announced Stripe as an additional payment gateway for subscriptions:
What does it mean? How could I use it in my shop?
I have sent this link to Bold Subscriptions and ReCharge but they told me that they didn't support Stripe.
Who can explain to me how to use the news about Stripe in my shop?
The announcement is relevant for the native subscription apps which uses Shopify checkouts. Since, bold and recharge uses their own checkouts, this is not relevant for them.
If you need to enable Stripe on your store, then you may consider migrating to native Shopify subscription apps like Loop Subscriptions.