There were multiple instances of complaints around Google de-indexing pages. It is hard to know exactly what is going on without being given access to the URLs in question, but there is a spike in complaints around indexing issues with Google as of this morning.

Had some key landing pages dropped out the index for no obvious reason today @sengineland @rustybrick – another bug?

— Michael James Field (Mikuss) (@Mikuss) September 30, 2020

Google have stated that an indexing issue has been fixed, but it doesn't appear to be a news-only problem.

We're seeing this morning a few issues where pages are being de-indexed – hopefully this will be fixed soon? @searchliaison

cc: @rustybrick #SEO https://t.co/SmS9yXvagr

— Fibre (@Fibre_Marketing) September 30, 2020

cc @rustybrick the issue above fixed it for me. Seen that others are having the same problem

— Sunny Matharu (@s_matharu) September 30, 2020

@JohnMu my company's home page just got de-indexed yesterday. how is it possible? no signs of trouble. Index issues again?

— bubble gum (@bubbleg34408153) September 30, 2020

Looks like Google is about to start rolling out their FREE listing for products in Shopping Tabs for countries across Europe, Asia, and Latin America. Currently, it’s only in a few countries like India, Indonesia and from April this year in the US.

Existing users of Merchant Center and Shopping ads don’t have to do anything to take advantage of the free listings.

The People Also Ask (PAA) feature has become an important facet of SEO and content strategies over the past few years. The SEMrush study examined 1,000,000 keywords of US desktop results (random subset from the SEMrush US database) to provide unique insights into the changing landscape of Google search features, as well as an action plan for how you can implement an effective PAA strategy for your own SEO.

Key Findings

• PAA boxes are present in almost half of all searches within our 1,000,000 keyword dataset and are continuing to grow.
• Google is using PAA at least in part for query refinement, giving websites the opportunity for first-page visibility on search terms that were previously too broad to target.
• A PAA SEO strategy is applicable to almost all sectors (industry-specific breakdowns can give you a guide to how much of your overall effort should go into PAA optimization).
• There are opportunities and risks for big brands to control answers where PAA questions are shown on branded search terms.
• Unlike featured snippets, it is possible to both appear in a PAA box and hold a standard organic ranking on page 1 of Google.
• 75% of the time a PAA result appears, it is within the top 3 results in Google, providing a good chance of high visibility.
• Question terms on average will generate PAA 86% of the time.
• Google is mainly taking web text content for PAA results, with 48 % of all PAA boxes being exclusively from text in paragraphs.
• There are still untapped opportunities for video content within PAA boxes, where Google cannot find any suitable results.
• As with other types of rich results, brevity is key with paragraph results averaging only 41 words.

Google is testing showing the people also search for query expander feature not just in the search results but also directly in the Google search bar. I was not able to trigger bit but a few other users have seen it.