Your experience is definitely unfortunate - stories/features being fully tested before being considered done, and therefore potentially shippable, is a key part

Your experience is definitely unfortunate - stories/features being fully tested before being considered done, and therefore potentially shippable, is a key part of a successful Agile process. Without it, you are missing out on a lot of the possible benefits of the process, and I have seen first-hand the difference having QA engineers, even not particularly strong ones, integrated into the sprint can make to product quality. A good first step to take would be to get your team together and work to define a Definition of Done, which should include both unit and integration/E2E testing (manual and/or automated) being complete - any stories not meeting these criteria cannot be considered as "done" and you can't count the points for them in the sprint. Of course, initially this will probably cause lots of failed sprints and will decrease your velocity, but you have to see this as a positive, in that this raises visibility of the problems, and once you can identify the specific issues you're having and take the steps you need to resolve them (whether that's a lack of QA resource, or poor testing culture among developers, or whatever), you'll know when you say something is "done", it actually is done, rather than hiding a load of extra testing work that isn't complete. On the requirements front, again defining a Definition of Ready can help - these are the criteria stories need to meet before you will estimate or start working on them. This should include things like requirements being clear, designs/UX being complete (if appropriate) and the story being testable and of a suitably small size for you to estimate with a reasonable degree of confidence. Once you start pushing back on estimating stories because they don't meet these requirements and educating your product owners what they can do to improve the situation (for example, breaking stories down into smaller chunks, or defining requirements more clearly), you'll hopefully find the situation improves. Of course, none of this is a substitute for conversations and working with the product team to help them understand what does and doesn't work for you, but I've personally helped make big differences to a team's quality and productivity by taking small steps such as these, in addition to educating the team and business on what "agile" is (without all the BS that some people will try and sell you!) and why this is important to us as developers and therefore to the wider organisation.