I have seen a couple of posts in the last few days, that suggest that as a UK citizen, you are limited as a tourist in Switzerland to 90 days in and then you have to be out for 90 days.

This is absolutely not true. This is only for Non EU citizens.

As a UK citizen and therefore EU citizen, you have un-restricted travel with-in the EU and Schengen, so therefore Switzerland. You can travel around as you please.

If you stay in one country for more than 90 days continuously, you should declare yourself as resident and in Switzerland get a resident permit. But you are not limited to 180 days in a year as a tourist in Switzerland or any Schengen EU countries.

According to this, there is a 90-day limit for certain UK citizens. As I don't fully understand each category or what it means, I'll leave it to the experts to explain better.

https://www.gov.uk/government/news/v...-schengen-area

Basically anyone who's actually from the UK is identified on their passport as a 'British Citizen'. The other types are holders of British passports who are not actually British citizens.

As for the OP, I don't recall seeing anything like you mention, but you're right, there is no such limit.

I've read it here...

Work permit when working from home

and here...

Permit refused, please help!

After reading your post here, I was wondering about that thread. Why then are the authorities telling that OP she has to leave the country? According to what you've written she should be able to stay here, at least by leaving for a day and coming back as a tourist...or am I misreading?

Yes she should. I think if the authorities have told her that (not someone else) then they are trying it on. She should be able to go anywhere out of Switzerland for a few days, then return to Switzerland for up to 90 days. Leave Schengen to the UK if she wants it on her immigration record, or buy a train/plane ticket to a Schengen country (and use it), so she has proof that she left.