If I was hiring a full-timer to join our team, and we were an AWS shop, I would be open to hiring someone with a predominantly GCP background as long as they were really good at GCP. Because then of course they can also get good at AWS.
IMHO the recruiting side is over-indexing on very specific technologies rather than personal skills/capabilities (oh, you are a C# expert, great, mind learning Java?). To fight that you could make your resume more buzzword compliant - do a small project in AWS, write a blog post or create a YouTube or TikToc about the differences/similarities, and do a couple of certifications.
I'm a software consultant. These help me run my business:
Freshbooks (invoicing - integrated with Toggl)
Toggl (time tracking - integrated with Freshbooks)
Dropbox (free doc management across many machines)
OneDrive (free doc sharing - more business oriented than Dropbox)
Evernote (free, used to be Premium, years of notes and ideas in here)
OneNote (free, currently using to manage client notes)
Highrise (free tier, currently using to track business prospects)
Amazon Prime (fast delivery)
Lastpass (password store in cloud)
Any.DO (keep me organized - first sustainable todo app)
Scanner Pro (iOS scanner app - so i could dump my old flatbed scanner)
Google service for business email domain (I forget what they call it)
WordPress.com (for my blog, paid tier to have custom domain blog.codingoutloud.com)
Skype
These help me stay sharp and up-to-date:
Audible (app on iOS, books on tape)
Podcasts (app on iOS)
Pluralsight (video training on iOS and Surface and desktop)
Meetup.com (I run a user group, bostonazure.org, and attend many)
Coding:
GitHub (code, mostly free, but use a few private repos at $7/m)
Azure cloud (various storage, VMs, Websites, databases, ...)
Sublime Text (programmer-friendly customizable editor)
PyCharm (Python development environment)
IMHO the recruiting side is over-indexing on very specific technologies rather than personal skills/capabilities (oh, you are a C# expert, great, mind learning Java?). To fight that you could make your resume more buzzword compliant - do a small project in AWS, write a blog post or create a YouTube or TikToc about the differences/similarities, and do a couple of certifications.