Most of the "drama" in recent Typescript, such as requiring file extensions, with the import syntax has been aligning with the Browser/Node requirements. If you set the output format to a recent enough ESM and the target platform to a recent enough ES standard or Node version it will be a little more annoying about file extensions, but the benefit is that it import syntax will just work in the browser or in Node.

The only other twist to import syntax is marking type-only imports with the type keyword so that those imports can be completely ignored by simple type removers like Node's. You can turn that check on today in Typescript's compile options with the verbatimModuleSyntax [1] flag, or various eslint rules.

[1] https://www.typescriptlang.org/tsconfig/#verbatimModuleSynta...