Yes as Emily said although there are normally better and safer car seats for next stage for the same price of the compatible next stage seat x
Wouldn’t worry about using the base for a next stage seat. There’s a handful you can re-use the bases on but they might not be suitable for your child. Look at Avionaut Sky, Avionaut cosmo and Besafe Beyong for infant carriers. Cybex cloud is very heavy and not all maxi cosi are very supportive
Thank you that’s all really helpful info
You're car seat you choose after using your infant carrier will depend on their centiles if higher than 50th centile you'll not use the bases anyway as will need a 25/36kg seat which don't require bases . If under you could use an isofix Base but most car seats are attached and come with their own xx