s3 is kinda hard to replace if you actually use it; the rest is manageable with varying levels of pain

SQS is particularly hard, there are other options, but it has less direct competitors than S3

	▲	jamesfinlayson 2 days ago \| parent [-]
		Agreed - I use AWS at work and try and keep the services we use to a minimum. S3 and DynamoDB are ones that somewhat lock us in but the way we use them, they are replaceable (not relying on any niche features). The different queue services would definitely be harder to swap out though.