I don't get all the hate for Teams. I work fully-remote on a medium sized team. We use Teams for one-one calls, team calls, presentations, screen-sharing, calls to external numbers and I've never had any problems. I run it on a Windows desktop and an Android phone. I've never had performance problems or crashes on either.
Some of the file-sharing/explorer stuff is a bit janky in terms of UI but I don't really use that. TBH it's all fairly seamless IMO.
Code snippets are a pain to get right. The tilde key is the shortcut to get monospace fonts or code blocks, and it feels like I roll the die everytime I try to convert text to a code block.
Teleconferencing is also a major pain, where devices are not remembered for some reason. It's mostly ok, but every now and then it forgets my mic. This might have been fixed recently since it doesn't happen as often but it still happens.
Not to mention the hangs that comes up when switching between conversations.
Pasting in teams is hilarious. I think when I last tried they were using contenteditable, as formatting that should not have carried over did so, along with the indentation going haywire on paste.
Backticks are used for formatting code in Teams, not tildes. Surround in-line text in single backticks, or place three backticks on a new line to start a code block.
At client, windows itself was unusable and people were blaming Microsoft... No it's the package team who did a shit job.