The same engine that VSCode uses is open source [1]. With lsp-mode [2] or eglot [3], you can have the same stuff working inside emacs. I've actually been writing Java inside emacs lately --- yes, java, and I have had very few issues.

One caveat, development on the emacs LSP stuff is moving very quickly, so I don't recommend using ELPA/MELPA/etc. to install the plugins. I use straight.el [4] to manage my plugins, they're checked out from the upstream source and can be updated at-will. You'll also need an up to date version of emacs, ie: 26+. (That's the current release, but it's not available in some distributions ie: debian/ubuntu yet.)

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[1]: https://github.com/Microsoft/python-language-server

[2]: https://github.com/emacs-lsp/lsp-mode

[3]: https://github.com/joaotavora/eglot

[4]: https://github.com/raxod502/straight.el

Python-lsp with emacs is dreadful bad. It's slow, bugged and doesn't integrate well. Worst is how often the helper dies.

The microsoft-helper is supposed to work better, but it seams harder to setup with linux, so I hadn't the chance yet to try it.

It's hard to beat pycharm especially on Windows...