Other than that, it's not like queries are any simpler and the "simple" type system is, in my opinion, not a feature. I get that some might disagree with that.
Is there some other reason why you would prefer it?
Only one file to backup or deploy is the biggest advantage of sqlite IMO.
I use it in my production SaaS serving around 4 million requests per month on one of the lowest DigitalOcean tiers. The big ones for me were cost, operating simplicity and performance. I don’t need a separate process or server running which has saved me some money and time, and the app’s workload doesn’t need a ton of inserts so the speed is blazing fast.
There are 2,592,000 seconds in a month. So, 1.5 requests per second?
11 years ago you used Postgres because that’s what Heroku told you to use.