And instead of buying more powerful hardware you can try to get the always free oracle VPS (4vcpu ARM, 24GB RAM, 200GB storage), do your compute stuff there, and keep the RPI as pi-hole/home assistant only. It will save you on electricity bill as well.
Just because you haven't been bitten yet, does not in any way mean you won't be, and crucially: it doesn't preclude others following your advice being bitten.
At least in my case I was not presented an obviously free option and the shapes given matched the always free tier, despite not being included in it.
I'm a reasonably smart individual, I did not click through blindly and made a concerted effort to discover the free option and was taken aback by the fact that I couldn't find an option that was branded as being free and was assured by a friend (working for Apiary in Oracle) that it was fine to pick the shape I picked.
Look, Regardless of how it came to pass: I should have been permitted to cancel. I continually paid what I considered to be the final bill (3 times in fact) until ultimately I was charged for an amount that it was not possible for me to actually pay (imagine trying to pay 0.1 US Cents or $0.001).
I know we like to think that we're smarter than other posters and that "maybe they were holding it wrong", but I can't put into words how sincerely you'd be mistaken in thinking that in this case. You are very likely thinking while reading this: "Yeah, but that wouldn't happen to me, it hasn't happened, I feel safe enough in my decisions I could get out of it" -- you'd be wrong.
