I think it's really important that you recognise that people wanting to use the desktop version is not simply about user preference, but is also because the experience offered on the browser version was far superior, with better easier to use features compared to the app.
So putting aside accessibility issues, squinting over a tiny screen etc, these are things that the desktop version did better
My cookbook. Whist technically this exists in the app, it's so impossible and time consuming to use as to render it pointless. So a move over to app only has effectively removed this feature.
Browsing recipes. I want to browse through ALL recipes, selecting things I fancy the look of. I don't meal plan by thinking I want 1 vegetarian recipe, 1 pork recipe, 1 low cal recipe and 1 budget friendly recipe, and go looking for them. I eat a range of meals. I want all recipes together to browse through. I could do this on the desktop version, but not on the app. I have to keep going in and out of different categories, it's time consuming and clunky.
In my shopping basket on the desktop version, it listed the meals with the products underneath them. It clearly listed duplicates and which recipes they were used in. Now all I can see is how many of an item, and "used in two recipes" but not showing which recipes they are, or how many/much was required in those recipes. So without clicking in and out and back to the recipes, it's impossible to avoid buying uneccessary duplicates. Also in the shopping basket, when you look at the recipes selected, it only shows the items selected, not the full list with selections marked. So I'm unable to add in extra stuff (e.g if the teenagers have raided the cupboards and eaten some of the ingredients that I thought I already had in). I've been trying to use the app, and have had to resort to pen and paper to write things down, which makes the whole process pointless. I might as well just browse online recipes and make a shopping list.
The app is currently not fit for purpose, and vastly inferior to the offering on the browser version. Literally no supermarket offers only an app to do online shopping, did it not occur to the people at Lollipop that there's a jolly good reason for that!
Please, please listen to what your community are telling you loud and clear, and bring back the browser version.