Yes, it is. Compiling TS just removes type annotations; the compilation output (.js) is as readable as your original .ts. It has the same structure, same indentation, same variable names, same whitespace, same comments, same everything. This also makes debugging the code in the browser very easy.

TS does not add any semantic features, it only adds type annotations. Which it checks at compile time, and then removes. That's it.

Want to switch away from TS? Compile all your .ts files, save the .js, check that into your repo and continue from there.

(As other commenters sort-of pointed out: you will need to keep Babel in your pipeline.)