My partner is in the fashion business so a “circular economy” themed accelerator seems relevant but I’m a little skeptical when there are no financial commitment involved.
If your partner has the bandwidth, I would consider applying for the perks, but I would be mindful of getting distracted by things that don’t entail building product/solving the core problem and selling to clients.
Pros: Community (always good to connect with other founders), some value in "brand" of parent company (if it's Google), PR opportunities, opportunities to network with folks in Google
Cons: No equity --> no stake --> limited incentive for the accelerator to provide you with tailored advice/mentorship, can be very time-consuming (and that's time you could be spending on your product), the "one size fits all" approach can lead to bad advice
Overall, I still think pros > cons, so long as the time is manageable. I think it would be great to have a Google stamp and meet other founders in the same space. I would also look into what the program commitments are (i.e. can you miss out on program talks/sessions without consequences?)
But...getting into an accelerator is often just a form of playing house.
Customers/users/clients don't care about the resume.
They care about the product and price and things like that.
To cut distraction, consider your 'maybe' a 'no.'
Good luck.