Rails 8 is surprisingly good nowadays. It absolutely still has its share of problems (e.g. Bundler being slow, the frontend story being crappy without Inertia, lack of types which is a biggie, memory) but it is still a fantastic framework imo.
Why Inertia.js? I quite enjoy not using JS heavy frontends in Rails by leaning on Turbo and light Stimulus JS controllers where needed. My experience going hard into Vue+Rails was full of pain and I've rediscovered why server first makes everything easier to reason about instead of duplicating tons of logic + dealing with constant async issues (particularly around automated testing and complex data loading).
Why Inertia.js? I quite enjoy not using JS heavy frontends in Rails by leaning on Turbo and light Stimulus JS controllers where needed. My experience going hard into Vue+Rails was full of pain and I've rediscovered why server first makes everything easier to reason about instead of duplicating tons of logic + dealing with constant async issues (particularly around automated testing and complex data loading).