There is some very high quality writing and gameplay in the genre right now. A lot of talented people are working on these games. And generally speaking, yes, you don’t need to spend a dime to see the main content.
I tend not to recommend them because you never know who has a gambling problem (and sometimes people don’t know until they are exposed to it for the first time). There’s also the other odd quirk–not just in gacha, but in live-service and other self-insert media in general lately–where character romance is omitted from the game world because they don’t want to offend insecure people. Can make things feel flat at times.
If one knows they are fine with both of those issues, there’s a lot of great content out there.















I use the Smart RSS extension for Firefox. I like FOSS for this because I require next to no features for an RSS aggregator. It’s not maintained anymore and I’m sure there’s something better out there but I haven’t been bothered enough to look.