If you build for a small number of professional users with a known target platform and you know how to solve distribution, then RAD tools (or any platforms supporting desktop targets) are the best choice and they offer superior UX compared to browser-based apps.

I myself now prefer to build admin tools on Java/Swing, because it’s much faster and easier than building a web app (Claude Code does that job quite well). Delphi probably offers even better dev.speed/quality/UX.